Electron Configuration 8 Question Preview (ID: 51229)
Grade Eight Electron Configuration.
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The electron configuration of He(Z=2, A=4) is
a) K1L1
b) K2
c) K2L2
d) K4
The argon atom,,Ar(Z=18, A=40) has ……………. shells:
a) 1
b) 2
c) 3
d) 4
The calcium atom,,Ca(Z=20, A=40) belongs to
a) Row 4 and column 2
b) Row 4 and column 12
c) Row 2 and column 4
d) Row 12 and column 14
Group of the tritium atom, H(Z=1,A=3), is
a) I
b) II
c) III
d) IV
The electron configuration of phosphorous (row 3 and column 15) is
a) K2L8M5
b) K1L9M5
c) K3L9M3
d) None of the choices.
Isotopes have:
a) Same electron configuration
b) Same period
c) Same group
d) All of the choices.
Period is the:
a) Number of electrons in the outer energy level
b) Number of bonding electrons.
c) Number of valence electrons
d) Number of occupied energy levels
Group is related to
a) Number of non bonding electrons.
b) Number of electrons in the outer energy level
c) Number of bonding electrons
d) Number of ocupied energy levels
The electron configuration of sulfur is: K2L8M6. Its period is
a) 6
b) 16
c) 3
d) None of the choices
The electron configuration of sulfur is: K2L8M6. Its group is:
a) III
b) VI
c) 3
d) 16
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