Chemistry Chemistry Practice Problems Solutions Library

Subatomic Particles Solutions Library

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267 solutions

Subatomic Particles

Q. With what allotrope of oxygen is it isoelectronic in NO2-? Write the answer as a chemical formula.

Solved • Mar 13, 2020

Subatomic Particles

Q. Complete the table below, using the diagram of an atom shown at right.

Solved • Mar 12, 2020

Subatomic Particles

Q. How many neutrons are present in a nucleus of iron-56?A) 56B) 26C) 28D) 30E) 20

Solved • Nov 25, 2019

Subatomic Particles

Q. Bromine exists naturally as a mixture of bromine-79 and bromine-81 isotopes. An atom of bromine-79 containsA. 34 protons and 35 electrons, onlyB. 3...

Solved • Nov 22, 2019

Subatomic Particles

Q. How many neutrons are there in the nucleus of a 232Th atom?a. 232b. 90c. 81d. 151e. 142

Solved • Nov 21, 2019

Subatomic Particles

Q. Which of the following ions is not isoelectronic with Xenon (Xe)?a. Cs+b. I -c. Sr2+d. Te2-e. all of the above choices are isoelectronic with Xenon

Solved • Oct 8, 2019

Subatomic Particles

Q. What element does “X” represent in the following symbol? a. Mercury (Hg)b. Chlorine (Cl)c. Rhodium (Rh)d. Scandium (Sc)e. Bromine (Br)

Solved • Sep 17, 2019

Subatomic Particles

Q. How many protons and neutrons are there in the Fe-58 isotope?a. 26 protons and 58 neutronsb. 32 protons and 26 neutronsc. 26 protons and 32 neutron...

Solved • Sep 14, 2019

Subatomic Particles

Q. How many protons (p) and neutrons (n) are in an atom of strontium-90? A) 38 p, 90 n B) 52 p, 38 n C) 90 p, 38 n D) 38 p, 52 n

Solved • Sep 13, 2019

Subatomic Particles

Q. An atom that has lost an electron is A) electrically neutral. B) likely to behave exactly like the parent atom. C) an anion. D) unlikely to be foun...

Solved • Sep 13, 2019

Subatomic Particles

Q. Which isotope has the largest number of neutrons?A. phosphorus-30B. chlorine-37C. 39KD. 40ArE. calcium-40

Solved • Sep 13, 2019

Subatomic Particles

Q. Which interaction of nature binds neutrons and protons into nuclei?

Solved • Sep 4, 2019

Subatomic Particles

Q. Provide a number of protons, neutrons, and electrons for each isotope.a) Isotope 16Ob) Isotope 108Ag

Solved • Aug 30, 2019

Subatomic Particles

Q. Find number of protons, neutrons, and electrons for each isotope.a) Isotope 207Pbb) Isotope 40Ca

Solved • Aug 30, 2019

Subatomic Particles

Q. How many electrons does the iron ion have when it forms the ionic compound  FeCl3?

Solved • Aug 27, 2019

Subatomic Particles

Q. An atom of oxygen has an atomic number of 8 and a mass number of 18. How many of each type of subatomic particle does it contain?

Solved • Aug 26, 2019

Subatomic Particles

Q. Calcium's atomic number is 20. It forms ions with 18 electrons. What is the electrical charge of a calcium ion?

Solved • Aug 26, 2019

Subatomic Particles

Q. If an atom contains 3 protons, 4 neutrons, and 3 electrons, its mass number is ___If an atom contains 11 protons and 12 neutrons, its atomic number...

Solved • Aug 25, 2019

Subatomic Particles

Q. How many electrons are in gold?

Solved • Aug 25, 2019

Subatomic Particles

Q. How many neutrons does aluminum have?

Solved • Aug 25, 2019

Subatomic Particles

Q. How many neutrons does neon have?

Solved • Aug 25, 2019

Subatomic Particles

Q. What is the number of neutrons in phosphorus?

Solved • Aug 25, 2019

Subatomic Particles

Q. How many neutrons does nitrogen have?

Solved • Aug 25, 2019

Subatomic Particles

Q. If an atom has an atomic number of 9 and an atomic mass number of 19, how many protons, neutrons, and electrons does it have?

Solved • Aug 7, 2019

Subatomic Particles

Q. If an atom has an atomic number of 15 and an atomic mass of 31, how many protons, neutrons and electrons does the atom contain?

Solved • Aug 7, 2019

Subatomic Particles

Q. What is an ion?

Solved • Aug 7, 2019

Subatomic Particles

Q. What is the atomic mass of neon?

Solved • Aug 7, 2019

Subatomic Particles

Q. What are the protons, neutrons, and electrons for a sulfur(2-) anion with a mass number of 33?

Solved • Aug 7, 2019

Subatomic Particles

Q. How many protons, neutrons, and electrons does a magnesium atom with a mass number of 25 contain?

Solved • Aug 7, 2019

Subatomic Particles

Q. What is the mass number of an ion with 104 electrons, 157 neutrons, and a +1 charge?

Solved • Aug 7, 2019

Subatomic Particles

Q. How many neutrons does Uranium-238 have if it has 92 protons?

Solved • Aug 7, 2019

Subatomic Particles

Q. How many protons, neutrons and electrons are in calcium?

Solved • Aug 7, 2019

Subatomic Particles

Q. How do you find the protons, neutrons, and electrons for a Bromine (1−) anion with a mass number of 80?

Solved • Aug 7, 2019

Subatomic Particles

Q. How many protons, neutrons, and electrons are present in an atom of aluminum-27?

Solved • Aug 7, 2019

Subatomic Particles

Q. How many protons, neutrons, and electrons are in a neutral atom of sodium?

Solved • Aug 7, 2019

Subatomic Particles

Q. Which of the following is an isoelectronic series?a. B5-, Si4-, As3-, Te2-b. F -, Cl -, Br -, I -c. S, Cl, Ar, Kd. Si2-, P2-, S2-, Cl2-e. O2-, F -,...

Solved • Aug 5, 2019

Subatomic Particles

Q. ___________ is isolectronic with argon and __________ is isolectronic with neon.a. Cl-, F-b. Cl-, Cl+c. F+, F-d. Ne-, Kr+e. Ne-, Ar+

Solved • Aug 5, 2019

Subatomic Particles

Q. What is the mass number of an ion with 109 electrons, 159 neutrons, and a +1 charge?

Solved • Aug 5, 2019

Subatomic Particles

Q. Which subatomic particle(s) are found in the nucleus of the atom?An atom of chlorine is represented by 3717Cl. How many neutrons are in the nucleus...

Solved • Aug 2, 2019

Subatomic Particles

Q. Specify the number of protons, neutrons, and electrons in the neutral atom chromium-52.

Solved • Aug 2, 2019

Subatomic Particles

Q. Define A, Z, and X   in the following notation used to specify a nuclide: ZA X.

Solved • Jan 8, 2019

Subatomic Particles

Q. For the following isotope that have missing information, fill in the missing information to complete the notation(a) 3414 X

Solved • Dec 10, 2018

Subatomic Particles

Q. Write the following isotope in nuclide notation (e.g., " 146C")(d) francium-217

Solved • Dec 10, 2018

Subatomic Particles

Q. Write the following isotope in nuclide notation (e.g., " 146C")(c) tantalum-175

Solved • Dec 10, 2018

Subatomic Particles

Q. Write the following isotope in nuclide notation (e.g., " 146C")(b) copper-70

Solved • Dec 10, 2018

Subatomic Particles

Q. Write the following isotope in nuclide notation (e.g., " 146C")(a) oxygen-14

Solved • Dec 10, 2018

Subatomic Particles

Q. Write the following isotope in hyphenated form (e.g., “carbon-14”)(a) 2411 Na

Solved • Dec 10, 2018

Subatomic Particles

Q. Give an example of an ionic compound where both the anion and the cation are isoelectronic with the following noble gases.b. Ar

Solved • Nov 27, 2018

Subatomic Particles

Q. The two most common isotopes of uranium are 235U and 238U.Compare the number of protons, the number of electrons, and the number of neutrons in ato...

Solved • Nov 12, 2018

Subatomic Particles

Q. How many protons and electrons are in each of the following ions?Rb+

Solved • Oct 25, 2018

Subatomic Particles

Q. What is the identity of the element X in the following ions?X2+, a cation that has 36 electrons.

Solved • Oct 25, 2018

Subatomic Particles

Q. Identify the following elements. 80202 X

Solved • Oct 25, 2018

Subatomic Particles

Q. Identify the following elements. 83209X

Solved • Oct 25, 2018

Subatomic Particles

Q. Iodine has a  lower  atomic weight than tellurium (126.90 for I, 127.60 for Te) even though it has a  higher  atomic number (53 for I, 52 for Te). ...

Solved • Oct 25, 2018

Subatomic Particles

Q. How many protons, neutrons, and electrons are in each of the following atoms? 58142 Ce

Solved • Oct 25, 2018

Subatomic Particles

Q. Which of the following is a symbol representing the ion obtained by removing two electrons from 63Cu ?

Solved • Oct 25, 2018

Subatomic Particles

Q. Consider an atom of 63Cu. How many protons, neutrons, and electrons does this atom contain?

Solved • Oct 25, 2018

Subatomic Particles

Q. What is the symbol for the isotope of 63Cu that possesses 36 neutrons?

Solved • Oct 25, 2018

Subatomic Particles

Q. Consider an atom of 10B.How many protons, neutrons, and electrons does this atom contain?

Solved • Oct 25, 2018

Subatomic Particles

Q. Consider an atom of 10B.What is the symbol of the atom obtained by adding one proton to 10B?

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the gaps in the following table, assuming each column represents a neutral atom:Symbol112CdProtons3892Neutrons5849Electrons3836Mass no.8123...

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the gaps in the following table, assuming each column represents a neutral atom:Symbol112CdProtons3892Neutrons5849Electrons3836Mass no.8123...

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the gaps in the following table, assuming each column represents a neutral atom:Symbol79BrProtons2582Neutrons3064Electrons4886Mass no.22220...

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the gaps in the following table, assuming each column represents a neutral atom:Symbol79BrProtons2582Neutrons3064Electrons4886Mass no.22220...

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the gaps in the following table, assuming each column represents a neutral atom:Symbol79BrProtons2582Neutrons3064Electrons4886Mass no.22220...

Solved • Oct 25, 2018

Subatomic Particles

Q. Which of these atoms has the largest number of neutrons in the nucleus?(a) 148Eu (b) 157Dy (c) 149Nd (d) 162Ho (e) 159Gd

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the gaps in the following table:SymbolP3-Protons3549Neutrons4566118Electrons4676Mass number31Net charge1-3+Complete the fourth row of the t...

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the gaps in the following table:SymbolP3-Protons3549Neutrons4566118Electrons4676Mass number31Net charge1-3+Complete the fifth row of the ta...

Solved • Oct 25, 2018

Subatomic Particles

Q. Identify the element represented by each of the following symbols and give the number of protons and neutrons in each.Identify the element 3374 X.

Solved • Oct 25, 2018

Subatomic Particles

Q. Identify the element represented by each of the following symbols and give the number of protons and neutrons in each.Give the number of protons an...

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the gaps in the following table:SymbolCo3+Protons347680Neutrons46116120Electrons3678Mass number59Net charge2+Complete the first row of the ...

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the gaps in the following table:SymbolCo3+Protons347680Neutrons46116120Electrons3678Mass number59Net charge2+Complete the second row of the...

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the gaps in the following table:SymbolCo3+Protons347680Neutrons46116120Electrons3678Mass number59Net charge2+Complete the fourth row of the...

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the gaps in the following table:SymbolCo3+Protons347680Neutrons46116120Electrons3678Mass number59Net charge2+Complete the fifth row of the ...

Solved • Oct 25, 2018

Subatomic Particles

Q. (a) Define atomic number and mass number.Which of these can vary without changing the identity of the element?

Solved • Oct 25, 2018

Subatomic Particles

Q. How many protons, neutrons, and electrons are in the following atoms?184 W,

Solved • Oct 25, 2018

Subatomic Particles

Q. Determine whether each of the following statements is true or false.The nucleus has most of the mass and comprises most of the volume of an atom.

Solved • Oct 25, 2018

Subatomic Particles

Q. Predictable charges of some common ions. Notice that the red stepped line that divides metals from nonmetals also separates cations from anions. Hy...

Solved • Oct 25, 2018

Subatomic Particles

Q. If an atom has 15 protons, how many electrons does it have?

Solved • Oct 25, 2018

Subatomic Particles

Q. In a naturally occurring sample, 19.8% of boron atoms have five neutrons and 80.2% have six neutrons.What is the mass of a boron atom containing 5 ...

Solved • Oct 25, 2018

Subatomic Particles

Q. Determine the number of electrons in the Cr3+ ion.

Solved • Oct 25, 2018

Subatomic Particles

Q. Suppose that atomic masses were based on the assignment of a mass of 12.000 g to 1 mol of carbon, rather than 1 mol of 12C.Find the atomic mass of ...

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the blanks to complete the table.Symbol Z  A  #p  #e-  #n ChargeSi14________1414____S2-____32____________2-Cu2+________________342+____15__...

Solved • Oct 25, 2018

Subatomic Particles

Q. Complete the following table.SymbolZA #p  #e  #n Charge_____8____________82-Ca2+20____________20____Mg2+____25________132+N3-____14____10________Co...

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the blanks to complete the following table. Symbol Ion Formed Number of Electrons ...

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the blanks to complete the following table.SymbolIon FormedNumber of Electrons in IonNumber of Protons in IonCaCa2+_______________Be2+2____...

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the blanks to complete the following table.SymbolIon FormedNumber of Electrons in IonNumber of Protons in IonCaCa2+_______________Be2+2____...

Solved • Oct 25, 2018

Subatomic Particles

Q. Fill in the blanks to complete the following table.SymbolIon FormedNumber of Electrons in IonNumber of Protons in IonCl__________17Te_____54_____Br...

Solved • Oct 25, 2018

Subatomic Particles

Q. On a dry day, your body can accumulate static charge from walking across a carpet or from brushing your hair.If your body develops a charge of -14 ...

Solved • Oct 25, 2018

Subatomic Particles

Q. Which of the following atoms and ions is (are) isoelectronic with S 2+: Si4+, Cl3+, Ar, As3+, Si, Al3+?

Solved • Oct 22, 2018

Subatomic Particles

Q. Which atom and/or ion is (are) isoelectronic with Br +: Se2+, Se, As–, Kr, Ga3+, Cl–?

Solved • Oct 22, 2018

Subatomic Particles

Q. Complete the following table.

Solved • Oct 16, 2018

Subatomic Particles

Q. Four Fe2+ ions are key components of hemoglobin, the protein that transports oxygen in the blood. Assuming that these ions are 53Fe2+, how many pro...

Solved • Oct 16, 2018

Subatomic Particles

Q. Write the symbol for each of the following ions: (a) the ion with a 3+ charge, 28 electrons, and a mass number of 71

Solved • Oct 16, 2018

Subatomic Particles

Q. Write the symbol for each of the following ions: (b) the ion with 54 electrons, 53 protons, and 74 neutrons

Solved • Oct 16, 2018

Subatomic Particles

Q. How many protons and neutrons are in the nucleus of each of the following atoms? In a neutral atom of each element how many electrons are present?d...

Solved • Oct 15, 2018

Subatomic Particles

Q. Write the AZX notation for each atomic depiction: 

Solved • Oct 11, 2018

Subatomic Particles

Q. Do both members of the following pairs have the same number of protons? Neutrons? Electrons? Which pair(s) consist(s) of atoms with the same Z valu...

Solved • Oct 11, 2018

Subatomic Particles

Q. Write the symbol for 12648X. Express your answer as a chemical symbol.

Solved • Oct 4, 2018

Subatomic Particles

Q. What symbol designates an ion that contains 13 protons and 10 electrons? (a) Ne (b) AI3+ (c) Al3- (d) P2+ 

Solved • Sep 28, 2018