Atomic Structur… | NUST Entrance Test Chemistry

An orbital like $s_{1},/:p_{x},/:p_{y},/:p_{z}$ and $d_{xy}$ can have at the most:

Difficulty: Easy

A:

Four electrons

B:

12,3,4, and 5 electrons respectively

C:

2,3,4,5 and 6 electrons respectively

D:

Two electrons

Maximum number of electrons that can be accommodated in a shell is given by:

Difficulty: Easy

A:

Avogadro's number

B:

$2n^{2}$ formula

C:

Empirical formula

D:

Molecular formula

The electron configuration of $H^{-}$ is:

Difficulty: Easy

A:

1s^{2}2s^{1}

B:

1s^{2}

C:

1s

D:

2s^{2}

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