Atomic Numbers and Electron Configurations

Question 1

For the n = 3 electron shell, which of the following quantum numbers are valid? Check all that apply.

Revolt · Accepted Answer

C: l = 0; D: m = –2; F: m = 2

Question 2

Which diagram shows the correct electron configuration for nitrogen (N)?

Revolt · Accepted Answer

B:

Question 3

Question 3

Revolt · Accepted Answer

: 2; : 1

Question 4

1s22s22p6: ⇒ Ne 1s22s22p63s23p3: 1s22s22p63s23p64s1: 1s22s22p63s23p64s23d8: 1s22s22p63s23p64s23d104p65s24d3:

Revolt · Accepted Answer

P, K, Ni, Nb

Question 5

B: 1s2 2sA2pBA =

Revolt · Accepted Answer

:  "2"; :  "1"

Question 6

Question 6

Revolt · Accepted Answer

: 2; : 6; : 1

Question 7

Na: 1s22sC2pD3sEC =

Revolt · Accepted Answer

:  "2"; :  "6"; :  "1"

Question 8

The electron configuration for aluminum (Al) is shown below:1s22s22p63s23p1Which diagram shows the correct distribution of electrons in the electron shells of an aluminum atom?

Revolt · Accepted Answer

C:

Question 9

What rule/principle states that electrons fill orbitals from lowest energy to highest energy?

Revolt · Accepted Answer

A: Aufbau principle

Question 10

Which of the following sets of quantum numbers describe valid orbitals? Check all that apply.

Revolt · Accepted Answer

A: n = 1, l = 0, m = 0; D: n = 3, l = 0, m = 0; E: n = 5, l = 4, m = –3

Atomic Numbers and Electron Configurations Answers

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