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Atoms- Smallest Unit of Matter

Q. Which statement is true of all atoms that are anions?A. The atom has more electrons than protons.B. The atom has more protons than electrons.C. The...

Solved • May 26, 2020

Atoms- Smallest Unit of Matter

Q. The reactivity of an atom arises froma. the average distance of the outermost electron shell from the nucleus.b. the existence of unpaired electron...

Solved • May 21, 2020

Atoms- Smallest Unit of Matter

Q. What terms describe the parts of an atom? 

Solved • May 19, 2020

Atoms- Smallest Unit of Matter

Q. Which drawing in the figure below  depicts the electron configuration of an element with chemical properties most similar to Helium (2He)?

Solved • Jul 2, 2018

Atoms- Smallest Unit of Matter

Q. If an atom has a valence shell that is full it:  a. Is highly reactive b. Is not chemically stable c. Is highly likely to combine with other ato...

Solved • Aug 1, 2017

Atoms- Smallest Unit of Matter

Q. The mass number of an atom is defined as:  a. The total number of protons, neutrons, and electrons of an atom b. The total number of protons and ...

Solved • Aug 1, 2017

Atoms- Smallest Unit of Matter

Q. The smallest chemical unit of an element is a molecule. a. True b. False

Solved • Aug 1, 2017

Atoms- Smallest Unit of Matter

Q. The area around a nucleus where an electron is most likely to be found is called a. electrical space b. an organelle c. polar space d. radioact...

Solved • Jul 18, 2017

Atoms- Smallest Unit of Matter

Q. Atoms in which the number of electrons does not equal the number of protons are known as a. valences b. ions c. isotopes d. molecules e. orbit...

Solved • Jul 18, 2017

Atoms- Smallest Unit of Matter

Q. Ordinary oxygen has an atomic mass number of 16 and an atomic number of 8. This means that the number of neutrons in this type of oxygen is a. 24 ...

Solved • Jul 18, 2017

Atoms- Smallest Unit of Matter

Q. The atomic number of an element is equal to the number ofa. protons onlyb. neutrons onlyc. protons plus electronsd. protons plus neutronse. neutron...

Solved • Jul 18, 2017

Atoms- Smallest Unit of Matter

Q. An electron a. has one negative charge b. has 1/1840 Dalton of mass c. is found in an area around the nucleus, called the orbital d. only a and...

Solved • Jul 18, 2017

Atoms- Smallest Unit of Matter

Q. A proton a. has one positive charge b. has one Dalton of mass c. is found in the nucleus of the atom d. only a and b are true e. a, b, and c a...

Solved • Jul 18, 2017

Atoms- Smallest Unit of Matter

Q. When atoms gain or lose electrons, they become negatively or positively charged. They are known as a. molecules b. isotopes c. ions d. radioact...

Solved • Jul 18, 2017

Atoms- Smallest Unit of Matter

Q. Negatively charged particles of atoms with almost no mass are called a. electrons b. protons c. neutrons d. ions e. polymers

Solved • Jul 18, 2017

Atoms- Smallest Unit of Matter

Q. Organisms are composed of molecules, which are collections of smaller units, called a. molecules b. atoms c. electrons d. polymers e. ions

Solved • Jul 18, 2017

Atoms- Smallest Unit of Matter

Q. The chemical behavior (whether it likes to form bonds with other atoms) of an atom is determined by: a. the number of electrons in its outermost e...

Solved • Jul 13, 2017