Answers26-27 WHS-Chemistry-1stSixWeeksThe History and Arrangement of the Periodic Table

Electrons and the Periodic Table Answers

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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.
2
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Which is the noble gas notation for chlorine?

A
[Ne] 4s2 4p5
B
[Ne] 3s2 3p5
C
[Ne] 3s2 3p3
D
[Ne] 3p2 3p5
3

The electron configuration of nitrogen (N) is

A
1s22s22p3
B
1s22s22p4
C
1s22s22p5
D
1s22s22p6
4

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

A
s block
B
d block
C
p block
D
f block
5

Which is the electronic configuration for oxygen?

A
1s2 2s2 2p1
B
1s2 2s2 2p3
C
1s2 2s2 2p4
D
1s2 2s2 2p6
6

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

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

It is easier to determine the electron configurations for the p-block elements in periods 1, 2, and 3 than to determine the electron configurations for the rest of the p-block elements in the periodic table because

A
they have a larger number of core electrons.
B
their electrons are assigned to s and p orbitals only.
C
their electrons are placed in a higher number of orbitals.
D
they have more valence electrons available for bonding.
8

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

A
1
B
2
C
10
D
12
9

In which block of the periodic table is chromium (Cr) found?

A
s block
B
d block
C
p block
D
f block
10

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

A
1
B
2
C
3
D
4

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