Question

give two examples of of element with valency 1
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Answer 1

Answer:

Alkali metals are elements with valency 1. Examples include lithium (Li), sodium (Na), potassium (K), rubidium (Rb) and caesium (Cs). Thus, one atom of sodium will combine with one atom of chlorine to from one molecule of sodium chloride (NaCl).

Explanation:

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Answer 2

Answer:

Two examples of valency 1 are :

(i) Hydrogen (H) &

(ii) Sodium (Na).