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WorksheetsAtomic Structure
Total questions: 10
Worksheet time: 5mins
The electronic configuration of atomic number 20 of an atom is which of the following?
2, 6, 6, 6
2, 8, 8, 2
2, 8, 10
2,4,5,8
Total number of orbitals associated with third shell will be __________.
2
4
9
3
The electronic configuration for oxygen is written as 1s2 2s2 2p4. Which rule will this configuration be violating?
Aufbau’s principle
Hund’s rule
Pauli’s exclusion principle
None of the above
Carbon monoxide has ten bonding electrons and four antibonding electrons. Therefore it has a bond order of
3
7
1
2
Antibonding molecular orbitals are produced by
constructive interaction of atomic orbitals.
destructive interaction of atomic orbitals.
the overlap of the atomic orbitals of two negative ions
all of these
A triple bond contains ___ sigma bond(s) and ___ pi bond(s).
0, 3
3, 0
1, 2
3, 2
ψMO = ψA + ψB.
True
False
Which of the following is a condition for the combination of atomic orbitals?
Combining atomic orbitals need not have equal energy
Combining atomic orbitals must have symmetry as per molecular axis
Combining atomic orbitals must overlap to a minimum extent
For combining atomic orbitals, X-axis should be taken as a molecular axis
Which Quantum Number is used to describe Sub shell????
n
l
m
s
According to LCAO theory the destructive approach of atomic orbital wave equation could result in
bonding orbitals
Anti-bonding orbitals
Non-bonding
