The P Block Elements

Chemistry
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The elements with atomic numbers and are collectively known as:

A
alkaline earth metals
B
inert gases
C
halogens
D
rare earths
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Which of the following electronic configuration corresponds to an inert gas?

A
B
C
D
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Mono atomic element among the following is:

A
phosphorus
B
oxygen
C
krypton
D
sulphur
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Elements with atomic numbers 9, 17, 35, 53 are collectively known as:

A
chalcogens
B
halogens
C
lanthanides
D
rare gases
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According to Coulson the high reactivity of fluorine than other halogens is because of its:

A
high electronegativity
B
lesser internuclear repulsions
C
greater repulsions between non bonding electrons
D
All the above
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