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Lesson 4.3
By Kristina Thibodeaux
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Last updated 2 months ago
6 questions
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Question 1
1.
How many
orbitals
are in the 2p subshell of an oxygen atom?
3
2
4
6
5
Question 2
2.
Which element has the following configuration?
Arsenic
Selenium
Bromine
Sulfur
Titanium
Question 3
3.
How many unpaired electrons does an atom of iron have?
3
4
1
0
2
Question 4
4.
How many valence electrons are in an element with the following electron configuration?
2
3
5
8
9
Question 5
5.
Which of the following elements is paired with the CORRECT noble gas notation?
Arsenic - [Ar] 4s
2
4p
3
Iodine - [Kr] 5s
2
5d
10
5p
5
Scandium - [Ar] 4s
3
Beryllium - [Ne] 2s
2
Phosphorus - [Ne] 3s
2
3p
3
Question 6
6.
In an ion of sulfur with a charge of -2, how many electrons are there in the 3p subshell?
2
3
4
5
6