AnswersChemistry Honors AElectrons and the Periodic Table

Electrons and the Periodic Table Answers

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The electron configuration of nitrogen (N) is

A
1s22s22p3
B
1s22s22p4
C
1s22s22p5
D
1s22s22p6
2
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Which is the noble-gas notation for lead (Pb)?

A
[Rn]6s24f145d106p2
B
[Rn]6s25d106p2
C
[Xe]6s24f145d106p2
D
[Xe]6s25d106p2
3

Which of these elements has an electron configuration of [Kr]5s2?

A
barium
B
calcium
C
rubidium
D
strontium
4

How many valence electrons does lithium (Li) have available for bonding?

A
1
B
2
C
3
D
4
5

In which block of the periodic table is uranium (U) found?

A
s block
B
d block
C
p block
D
f block
6

The noble-gas notation for tin (Sn) will contain the symbol

A
[Ar].
B
[Kr].
C
[Xe].
D
[Rn].
7

What is the number of valence electrons in cadmium (Cd)?

A
1
B
2
C
10
D
12
8

Which element does the electron configuration 1s22s22p2 represent?

A
B
B
C
C
N
D
K
9

Which statement describes the 3d, 4s, and 4p orbitals of Arsenic (As) based on its electronic configuration and position in the periodic table?

A
The 3d and 4s orbitals are completely filled, and the 4p orbital is partially filled.
B
The 3d orbital is completely filled, and the 4s and 4p orbitals are partially filled.
C
The 3d, 4s, and 4p orbitals are completely filled.
D
The 3d, 4s, and 4p orbitals are partially filled.
10

Which is the electronic configuration for oxygen?

A
1s2 2s2 2p1
B
1s2 2s2 2p3
C
1s2 2s2 2p4
D
1s2 2s2 2p6

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