The atom that accepts electrons is said to have a __ valency.

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Solution

The atom that accepts electrons is said to have a negative valency. All non metals have negative valencies. The number of electrons in their valence shells varies between 4 and 7. During chemical combination, they accept electrons and become negatively charged. Depending upon the number of electrons accepted, these elements are monovalent, bivalent and trivalent.

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Statement 1: Every element has a unique valency.
Statement 2: Some elements have the tendency of both giving and accepting electrons.

(a) What are valence electrons? Where are valence electrons situated in an atom ?

(b) What is the number of valence electrons in the atoms of an element having atomic number 13 ? Name the valence shell of this atom.

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