Question

State the correct answer.
(i) The number of electrons in the valence [outermost] shell of a halogen is :
(a) 1
(b) 3
(c) 5
(d) 7
(ii) Electro negativity across the period – increases/decreases.
(iii) Non metallic character down the group – increases/decreases.

  • Periodic Table
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Answer

(i) The number of electrons in the valence shell of halogen is 7.

(ii) Electro negativity across a period – increases.

(iii) Non metallic character down the group – decreases.

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