Atoms of metals have only a few electrons in their \( \mathrm{P} \)...

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Atoms of metals have only a few electrons in their
\( \mathrm{P} \) valence shells while atoms of non-metals generally

W. have more electrons in their valence shells. Metallic character is closely related to atomic radius and ionisation enthalpy. Metallic character increases from top to bottom in a group and decreases from left to right in a period. Metallic character is inversely related to electronegativity.

Which of the following groups contains metals, nonmetals and metalloids -
(A) Group 1
(B) Group 17
(C) Group 14
(D) Group 2
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