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Worksheets2.1 spdf electron configuration
Total questions: 13
Worksheet time: 17mins
Name
Class
Date
1.
Electrons are filled according to 3 principles. Which is FALSE ?
a)
Aufbau principle
b)
Hund's rule
c)
Pauli exclusion principle
d)
spdf principle
2.
Electrons occupy orbital singly before pairing up. State that principle/rule.
a)
Aufbau principle
b)
Hund rule
c)
Pauli exclusion principle
d)
spdf principle
3.
2nd energy level contain 2 sublevel. Name the sublevel and max number of electron in each sublevel.
a)
1s with 1 electron and 1p with 3 electrons
b)
2s with 1 electron and 2p with 3 electrons
c)
1s with 1 electron and 1p with 6 electrons
d)
2s with 2 electrons and 2p with 6 electrons
4.
Write the full electronic structure for Na with 11 electrons.
a)
1s22s22p63s1
b)
1s22s23p63s1
c)
[Ne]3s1
d)
1s22s22p63p1
5.
Write the full electronic structure for Ca with 20 electrons.
a)
1s22s22p63s23p6
b)
1s22s22p63s23p64s0
c)
1s22s22p63s23p64s1
d)
1s22s22p63s23p64s2
6.
Write the full electronic structure for Sc with 21 electrons.
a)
1s22s22p63s23p63d3
b)
1s22s22p63s23p63d14s2
c)
1s22s22p63s23p64s24d1
d)
1s22s22p63s23p64s23d1
7.
Write the full electronic structure for Cr with 24 electrons.
a)
1s22s22p63s23p63d6
b)
1s22s22p63s23p64s24p4
c)
1s22s22p63s23p64s23d4
d)
1s22s22p63s23p64s13d5
8.
Write the full electronic structure for Cu with 29 electrons.
a)
1s22s22p63s23p63d104s1
b)
1s22s22p63s23p63d94s2
c)
1s22s22p63s23p64s23d9
d)
1s22s22p63s23p64s13d10
9.
Write the electronic structure for Cr3+ ion
a)
[Ar]4s13d5
b)
[Ar]4s13d2
c)
[Ar]4s03d3
d)
[Ar]3d3
10.
Write the electronic structure for Mn4+ ion
a)
[Ar]4s23d5
b)
[Ar]4s23d1
c)
[Ar]4s03d2
d)
[Ar]3d3
11.
Write the electronic structure for Cu+1 ion
a)
[Ar]4s13d10
b)
[Ar]4s13d9
c)
[Ar]4s03d10
d)
[Ar]3d10
12.
State the electronic structure for element in Gp2 and Period 3.
a)
1s22s22p63s2
b)
1s22s22p3
c)
1s22s22p1
d)
1s22s22p63s23p64s2
13.
State the electronic structure for element in Gp15 and Period 2.
a)
1s22s22p3
b)
1s22s22p5
c)
1s22s22p63s23p3
d)
1s22s22p63s23p5
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