Elements with a valency 1 are -

Always metals

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Always metalloids

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Either metals or non-metals

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Always non-metals

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Solution

The correct option is C Either metals or non-metals
Elements with a valency of 1 can either be metals with 1 valence electron (Li, Na, K, Rb, Cs) or nonmetals with 7 valence electrons (F, Cl, Br, I).

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Similar questions

Q. Elements with a valency 1 are -

(a) Explain the terms 'valency' and 'variable valency'.

(b) How are the elements with variable valency named ? Explain with an example.

Q. Question 12
Elements with valency 1 are

(a) always metals
(b) always metalloids
(c) either metals or non-metals
(d) always non-metals

Statement-1: An element of valency 2 can combine with an element of valency 1.
Statement-2: To write the chemical formula, one must know the symbol and valency of the elements.

Q. An element X forms a compound XH₃ with hydrogen. Another element Y forms a compound YX₂ with X. Given that the valency of hydrogen is 1, what are the valencies of X and Y?

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Elements with a valency 1 are -

The correct option is C Either metals or non-metalsElements with a valency of 1 can either be metals with 1 valence electron (Li, Na, K, Rb, Cs) or nonmetals with 7 valence electrons (F, Cl, Br, I).

The correct option is C Either metals or non-metals
Elements with a valency of 1 can either be metals with 1 valence electron (Li, Na, K, Rb, Cs) or nonmetals with 7 valence electrons (F, Cl, Br, I).