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

l = 0; m = –2; m = 2

Question 2

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

Revolt · Accepted Answer

n = 1, l = 0, m = 0; n = 3, l = 0, m = 0; n = 5, l = 4, m = –3

Question 3

1s22s22p6: 1s22s22p63s23p3: 1s22s22p63s23p64s1: 1s22s22p63s23p64s23d8: 1s22s22p63s23p64s23d104p65s24d3:

Revolt · Accepted Answer

1s22s22p6:: Ne; 1s22s22p63s23p3:: P; 1s22s22p63s23p64s1:: K; 1s22s22p63s23p64s23d8:: Ni; 1s22s22p63s23p64s23d104p65s24d3:: Nb

Question 4

B: 1s2 2sA2pBA = B =

Revolt · Accepted Answer

Part 1: 2; Part 2: 1

Question 5

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

Answer image: https://r12.core.learn.edgenuity.com//media.edgenuity.com/EVresources/3210-02-08-20-07-task/mc001-3.jpg

Question 6

Did your answer include at least one of the items listed in each category below?

Revolt · Accepted Answer

Dot structures make it easy to count electrons and they show the number of electrons in each electron shell.

Question 7

Na: 1s22sC2pD3sEC =

Revolt · Accepted Answer

Part 1: 2; Part 2: 6; Part 3: 1

Atomic Numbers and Electron Configurations Answers

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