Chemistry Chemistry Practice Problems Solutions Library

Electron Configuration Solutions Library

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435 solutions

Electron Configuration

Q. Arrange the first ten energy sublevels by increasing energy.

Solved • Mar 31, 2020

Electron Configuration

Q. Which neutral atom has the following electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2?

Solved • Mar 25, 2020

Electron Configuration

Q. Which element has the following configuration: [Xe]6s24f5 ?

Solved • Mar 25, 2020

Electron Configuration

Q. Write the full ground-state electron configuration for each element.(a) S: (b) Kr: (c) Cs:

Solved • Mar 23, 2020

Electron Configuration

Q. Which ion does not have a noble gas configuration in its ground state? a) As3- b) Al3+ c) Ga3+ d) Sc3+

Solved • Mar 23, 2020

Electron Configuration

Q. Which of the following have their valence electrons in the same shell?A. Li, N, FB. B, Si, AsC. N, As, BiD. He, Ne, F

Solved • Mar 20, 2020

Electron Configuration

Q. Write the corresponding electron configuration for the following pictorial representation. ve the full electron configuration (do not use the noble...

Solved • Mar 20, 2020

Electron Configuration

Q. The electron configuration 1s22s22p63s23p64s13d9 refers to the excited state of what element?A. NiB. CuC. PdD. AgE. Zn

Solved • Nov 28, 2019

Electron Configuration

Q. What element has a +2 cation with the electron configuration [Ar]3d9?A) ZincB) CopperC) GalliumD) CadmiumE) Silver

Solved • Nov 25, 2019

Electron Configuration

Q. Give the full ground-state electron configuration for the element. Sea. 1s22s22p63s23p64s23d104p2b. 1s22s22p63s23p64s23d104p65s1c. 1s22s22p63s23p64...

Solved • Nov 21, 2019

Electron Configuration

Q. Select the ground state electron configuration of Bi.(a) [Xe] 6s25d106p3(b) [Xe] 7s25f145d107p3(c) [Xe] 6s24f145d106p3(d) [Xe] 6s26f146d106p3(e) [X...

Solved • Oct 19, 2019

Electron Configuration

Q. What element has an electron configuration of [Kr] 5s24d105p2 :(a) As (b) Sb (c) I (d) Sn (e) Pb

Solved • Oct 19, 2019

Electron Configuration

Q. The outer electronic configuration (past [Ne]) for Co2+ is:(a) 3s23p53d8(b) 3s23p63d7(c) 3s23p64s23d7(d) 3s23p64s23d5(e) 3s23p64s23d8

Solved • Oct 18, 2019

Electron Configuration

Q. Select the ground state electron configuration for selenium (Se).(a) [Ar] 3d104p4(b) [Ar] 4s23d84p6(c) [Ar] 3d104p6(d) [Ar] 4s13d54p3(e) [Ar] 4s23d...

Solved • Oct 18, 2019

Electron Configuration

Q. Give the actual electron configuration for copper (Cu).(a) [Ar] 4s13d10(b) [Ar] 3d9(c) [Ar] 4s23d9(d) [Ar] 4s23d8(e) [Ar] 4s23d10

Solved • Oct 18, 2019

Electron Configuration

Q. Which electron configuration is incorrect?a. Zn:  [Ar]3d104s2b. Ca:  [Ar]4s2c. Cr:  [Ar]3d44s2d. Ag:  [Kr]4d105s1e. All the above are correct.

Solved • Oct 9, 2019

Electron Configuration

Q. What is the number of valence electrons for a selenium atom?a. 0b. 2c. 4d. 6e. 8

Solved • Oct 8, 2019

Electron Configuration

Q. What is the electron configuration for the Ni 2+ ion?a. [Ar]3d84s2b. [Ar]3d104s2c. [Ar]3d74s1d. [Ar]3d8e. [Ar]3d64s2

Solved • Oct 8, 2019

Electron Configuration

Q. What is the electron configuration for a tin (Sn- #50) atom?a. [Kr] 5s25p2b. [Kr] 5d105s25p2c. [Kr] 4d105p4d. [Kr] 4d105s25p2e. [Kr] 4d104s24p2

Solved • Oct 8, 2019

Electron Configuration

Q. Copper has the following ground-state electron configuration: [Ar]4s13d10. How many valence electrons does an atom of Cu have?A) 9B) 10C) 11D) 12E) 13

Solved • Oct 1, 2019

Electron Configuration

Q. What is the electron configuration for the Fe2+ ion?A) [Ar]4S03d6B) [Ar]4S23d4C) [Ar]4S03d8D) [Ar]4S23d8E) [Ar]4S63d2

Solved • Oct 1, 2019

Electron Configuration

Q. [Ar]4s23d104p3 is the electron configuration of a(n) __________ atom.A) AsB) VC) PD) SbE) Sn

Solved • Oct 1, 2019

Electron Configuration

Q. Choose the ground state electron configuration for Ti 2+.a. [Ar]3d2b. [Ar]3d4c. [Ar]4s2d. [Ar]4s23d2e. [Ar]4s23d4

Solved • Sep 30, 2019

Electron Configuration

Q. Give the ground state electron configuration for Pb. a. [Xe]6s25d106p2b. [Xe]6s24f145d106p2c. [Xe]6s26p2d. [Xe]6s25f146d106p2e. [Xe]6s24f145d106s26p2

Solved • Sep 30, 2019

Electron Configuration

Q. Identify the element that has a ground state electronic configuration of [Ar]4s 23d7.a. rheniumb. zincc. tungstend. calciume. cobalt

Solved • Sep 30, 2019

Electron Configuration

Q. What is the electron configuration of Zn2+?A. [Ar] 4s2 3d10      B. [Ar] 3d10      C. [Ar] 4s2 3d8      D. [Ar] 4s2 3d10 4p1E. [Ar] 4s1 3d10

Solved • Sep 18, 2019

Electron Configuration

Q. True or False: the element with electron configuration [Kr] 5 s24d105p2 is a metal.

Solved • Sep 18, 2019

Electron Configuration

Q. What is the correct electron configuration of a magnesium ion, Mg 2+ ?A. [Ne] 3s1      B. [Ne]      C. [Ar]      D. [Ar] 3s1      E. [Ne] 3s2

Solved • Sep 18, 2019

Electron Configuration

Q.  Provide the electron configuration for Ag+.

Solved • Sep 3, 2019

Electron Configuration

Q. The atomic number of chlorine is 17. Give the electron configuration for a neutral atom of chlorine.

Solved • Sep 3, 2019

Electron Configuration

Q. What is the noble gas shorthand electron configuration of a tungsten atom?

Solved • Aug 31, 2019

Electron Configuration

Q. What is the charge on the strontium ion?

Solved • Aug 29, 2019

Electron Configuration

Q. What is the electron configuration of the gallium ion?

Solved • Aug 29, 2019

Electron Configuration

Q. How many valence electrons does a helium atom have?

Solved • Aug 29, 2019

Electron Configuration

Q. How many valence electrons are in an atom of phosphorus?

Solved • Aug 29, 2019

Electron Configuration

Q. How many valence electrons are in an atom of magnesium?

Solved • Aug 27, 2019

Electron Configuration

Q. How many valance electrons are in an atom of phosphorus?

Solved • Aug 27, 2019

Electron Configuration

Q. How many electrons must be gained by the following atom to achieve a stable electron configuration?Phosphorus

Solved • Aug 25, 2019

Electron Configuration

Q. How many electrons must be gained by the following atom to achieve a stable electron configuration?Chlorine

Solved • Aug 25, 2019

Electron Configuration

Q. How many electrons must be gained by the following atom to achieve a stable electron configuration?Sulfur

Solved • Aug 25, 2019

Electron Configuration

Q. How many electrons must be gained by the following atom to achieve a stable electron configuration?Nitrogen 

Solved • Aug 25, 2019

Electron Configuration

Q. Write the symbol for the ion formed when the following atom achieve a stable electron configuration:strontium

Solved • Aug 25, 2019

Electron Configuration

Q. Write the symbol for the ion formed when the following atom achieve a stable electron configuration:calcium

Solved • Aug 25, 2019

Electron Configuration

Q. Write the symbol for the ion formed when the following atom achieve a stable electron configuration:potassium

Solved • Aug 25, 2019

Electron Configuration

Q. Write the symbol for the ion formed when the following atom achieve a stable electron configuration:barium

Solved • Aug 25, 2019

Electron Configuration

Q. Write the symbol for the ion formed when the following atom achieve a stable electron configuration:lithium

Solved • Aug 25, 2019

Electron Configuration

Q. Write the symbol for the ion formed when the following atom achieve a stable electron configuration:aluminum

Solved • Aug 25, 2019

Electron Configuration

Q. How many electrons must an atom of the element lose to attain a noble-gas electron configuration?Ba

Solved • Aug 25, 2019

Electron Configuration

Q. How many electrons must an atom of the element lose to attain a noble-gas electron configuration?Li

Solved • Aug 25, 2019

Electron Configuration

Q. How many electrons must an atom of the element lose to attain a noble-gas electron configuration?Al

Solved • Aug 25, 2019

Electron Configuration

Q. How many electrons must an atom of the element lose to attain a noble-gas electron configuration?Ca

Solved • Aug 25, 2019

Electron Configuration

Q. To which group in the periodic table does each of the following element belong? How many valence electrons do atoms of the element have?nitrogen

Solved • Aug 25, 2019

Electron Configuration

Q. How many valence electrons does iron have?

Solved • Aug 25, 2019

Electron Configuration

Q. Write the ground-state electron configuration of the following transition metal:  Fe 2+?

Solved • Aug 21, 2019

Electron Configuration

Q. Write the ground-state electron configuration of the following transition metal:  Au3+?

Solved • Aug 21, 2019

Electron Configuration

Q. How many valence electrons does Cu have?

Solved • Aug 8, 2019

Electron Configuration

Q. What is the electron configuration of the neon atom?

Solved • Aug 7, 2019

Electron Configuration

Q.  What is the electron configuration of potassium?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the electron configuration of the iron (III) ion?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the electronic configuration of Mn 3+?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the correct electron configuration for silicon?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the electron configuration for a phosphide ion?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the abbreviated electron configuration of Sn?

Solved • Aug 7, 2019

Electron Configuration

Q. How many 3d electrons does the manganese(II) ion, Mn2+, have?

Solved • Aug 7, 2019

Electron Configuration

Q. What is uranium's electron configuration?

Solved • Aug 7, 2019

Electron Configuration

Q. How do you write the noble-gas electron configuration for bromine?

Solved • Aug 7, 2019

Electron Configuration

Q. How to write the electron configuration for sulfur? (z = 16)

Solved • Aug 7, 2019

Electron Configuration

Q. Electronic configuration of bromine?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the electron configuration for a chloride ion?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the electron configuration of Hg 2+?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the electron configuration of  Cr2+?

Solved • Aug 7, 2019

Electron Configuration

Q. How do you draw the electron configuration diagram for manganese?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the electron configuration using core notation for  Se2−?

Solved • Aug 7, 2019

Electron Configuration

Q. What element has the electron configuration 1s2 2s2 2p6 3s2 3p2?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the electron configuration of Mo3+?

Solved • Aug 7, 2019

Electron Configuration

Q. Write the ground-state electron configuration of the following transition metal:  V5+?

Solved • Aug 7, 2019

Electron Configuration

Q. Why is the electron configuration of chromium 1s22s22p63s23p63d54s1 instead of 1s22s22p63s23p63d44s2?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the electron configuration of chlorine?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the electron configuration of Ca 2+?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the unabbreviated electron configuration of gold?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the electron configuration for bromine?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the electron configuration of chromium?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the electron configuration of the P3- and Mo3+ ions?

Solved • Aug 7, 2019

Electron Configuration

Q. What is the electron configuration of F−?

Solved • Aug 7, 2019

Electron Configuration

Q. How do you determine the electron configuration of Fe?

Solved • Aug 7, 2019

Electron Configuration

Q. Which element has the following ground-state electron configuration?1s22s22p63s2a. Nab. Mgc. Ald. Sie. Ne

Solved • Aug 6, 2019

Electron Configuration

Q. How many unpaired electrons does a ground-state atom of sulfur have?a. 0b. 1c. 2d. 3e. 4

Solved • Aug 6, 2019

Electron Configuration

Q. What is the electron configuration of the cobalt (II) ion?a. [Ar]4s23d4b. [Ar]3d4c. [Ar]4s23d4d. [Ar]3d7e. [Kr]3d6

Solved • Aug 5, 2019

Electron Configuration

Q. In the electron configuration [Xe]6s24f145d106p4, which are valence electrons? A) all of the electrons after the [Xe] B) only the 4f14 electrons C)...

Solved • Aug 5, 2019

Electron Configuration

Q. Match each ion with the noble gas whose electron configuration it shares.Be2+N3-Na+O2-Cl-Li+S2-Ca2+

Solved • Aug 2, 2019

Electron Configuration

Q. According to Hund's rules, the lowest (ground) state of the silicon atoma. has four unpaired electronsb. has three sets of paired electronsc. has 2...

Solved • Jul 10, 2019

Electron Configuration

Q. Build the orbital diagram for the ion most likely formed by phosphorus.

Solved • Jul 9, 2019

Electron Configuration

Q. How many outer-shell d electrons are there in each of the following transition-metal ions?Re(III) =Sc(III) =Ru(IV) =Hg(II) =

Solved • Jul 9, 2019

Electron Configuration

Q. What noble gas has the same electron configuration as the ion in the following compound?b. strontium fluoride

Solved • Nov 27, 2018

Electron Configuration

Q. What noble gas has the same electron configuration as the ion in the following compound?a. cesium sulfide

Solved • Nov 27, 2018

Electron Configuration

Q. Which of the following ions have noble gas electron configurations?a. Fe2+, Fe3+, Sc3+, Co3+b. Tl+, Te2—, Cr 3+c. Pu4+, Ce4+, Ti4+d. Ba2+, Pt2+, Mn2+

Solved • Nov 27, 2018

Electron Configuration

Q. Write electron configuration for the cations Sr 2+, Cs+, In+, and Pb2+.

Solved • Nov 27, 2018

Electron Configuration

Q. Write electron configuration for the anions N3—, O2—, F—, and Te2—.

Solved • Nov 27, 2018

Electron Configuration

Q. Write electron configurations for the most stable ion formed by each of the elements Al, Ba, Se, and I (when in stable ionic compounds).

Solved • Nov 26, 2018

Electron Configuration

Q. Consider the molecule BF3.What is the electron configuration of an isolated B atom?

Solved • Nov 12, 2018