quiz 2 . 3sec
Quiz
•
Chemistry
•
11th - 12th Grade
•
Practice Problem
•
Medium
Marwan mamdouh
Used 4+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is wrong with the following electron configuration:
1s^2, 2s^2, 2p^6, 3s^2, 3p^6, 3d^10, 4s^2?
The 4s orbital is lower energy than the 3d orbital, so it fills first and therefore should be listed first.
The p orbital can only hold 4 electrons.
The highest energy orbital is always listed first.
Electron numbers should be written as subscripts, not superscripts.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What information is necessary for writing electron configurations?
All of the orbitals occupied by electrons, and the number of electrons in each.
The mass of the element.
The nuclear stability of the element.
The spin of the electrons.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the maximum number of electrons that can be found in a 5p cluster (or orbital) of a single atom?
ركز ي حبيبي
2
5
6
14
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which block is manganese (Mn) located in?
d-block
f-block
p-block
s-block
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Element having electronic configuration
1s2,2s2,2p6,3s2,3p6,3d10,4s2,4p6,4d10,5s2,5p3
belongs to the group in the periodic table:
3rd A group
2nd A group
5th A group
7th A group
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The electronic configuration of
Cr3+is:
[Ar]3d44s2
[Ar]3d34s0
[Ar]3d24s1
[Ar]3d54s1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following has the electronic configuration [Ar] 3d5?
Cr
Fe3+
Mn
V
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