AnswersChemistry Honors AThe Structure of the Atom

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 element does the electron configuration 1s22s22p2 represent?

A
B
B
C
C
N
D
K
3

Which is the electron configuration for nobelium (No)?

A
[Rn]7s25f14
B
[Rn]7s25f7
C
[Ne]3s23p7
D
[Xe]6s25d1
4

Which is the noble-gas notation for lead (Pb)?

A
[Rn]6s24f145d106p2
B
[Rn]6s25d106p2
C
[Xe]6s24f145d106p2
D
[Xe]6s25d106p2
5

Hydrogen reacts with an element to form a compound. Which element would have the most valence electrons available to react with hydrogen?

A
oxygen
B
chlorine
C
neon
D
nitrogen
6

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

A
1
B
2
C
3
D
4
7

Which is the electronic configuration for oxygen?

A
1s2 2s2 2p1
B
1s2 2s2 2p3
C
1s2 2s2 2p4
D
1s2 2s2 2p6
8

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.
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

Which of the following elements has the fewest valence electrons?

A
beryllium
B
boron
C
carbon
D
lithium

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