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Worksheets2.1.A.1 Electron Configurations
Total questions: 20
Worksheet time: 30mins
How many electrons can the d sublevel hold?
There are 4 different types of subshells s, p, d, f
1s22s22p63s2
1s22s22p63s23p64s23d10
Which of the following chemical species has the same electron configuration as an atom of argon, Ar?
Mg2+
Be2+
O2-
Cl-
What is meant by isolectronic?
Group of atoms or ions have the same electronic configuration
Group of atoms or ions have the same protonic configuration
Group of atoms or ions have the same electrical properties
Group of atoms or ions have the same electron charge
What is the example of species that are isolectronic?
Na+ and Si4+
Na+ and Cl-
Mg2+ and Al +
S2- and O2-
Which of the following pairs of ions are isoelectronic?
Na+ and Cl-
Cl- and Si4-
K+ and N3-
Ca2+ and Sc2+
Energy levels are denoted by:
letters
numbers
a combination of letters and numbers
subscripts
The valence electron for Li atom is located at which orbital?
1s
2s
2p
2d
How many valence electrons does this configuration have?
1s22s22p63s23p64s23d104p6
6
8
10
16
How many valence electrons does this configuration have?
1s22s22p63s23p4
2
4
6
16
[Ne] 3s23p64s2
3s2 3p2
What is the valence configuration of Ga
4s24p
4s23d104p
4s24d104p
