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The electron configuration of He(Z=2, A=4) is
3
VI
K2
I
Row 4 and column 2
Number of occupied energy levels
All of the choices.
3
The electron configuration of sulfur is: K2L8M6. Its group is:
3
VI
K2
I
Row 4 and column 2
Number of occupied energy levels
All of the choices.
3
Period is the:
3
VI
K2
I
Row 4 and column 2
Number of occupied energy levels
All of the choices.
3
The calcium atom,,Ca(Z=20, A=40) belongs to
3
VI
K2
I
Row 4 and column 2
Number of occupied energy levels
All of the choices.
3
The argon atom,,Ar(Z=18, A=40) has ……………. shells:
3
VI
K2
I
Row 4 and column 2
Number of occupied energy levels
All of the choices.
3
Isotopes have:
3
VI
K2
I
Row 4 and column 2
Number of occupied energy levels
All of the choices.
3
Group of the tritium atom, H(Z=1,A=3), is
3
VI
K2
I
Row 4 and column 2
Number of occupied energy levels
All of the choices.
3
The electron configuration of sulfur is: K2L8M6. Its period is
3
VI
K2
I
Row 4 and column 2
Number of occupied energy levels
All of the choices.
3
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