1. Name the element with reference to theelements of the modern period

1. Name the element with reference to theelements of the modern periodic table.(i) The number of electron shells in the elementsof period 3.(ii) The noble gas having an electronicconfiguration of 2, 8, 8.(iii) The group whose elements show zero valency.(iv) The non-metal in the period 3 having avalency of 1.(v) The alkali metal in the period 2.(vi) The element in the period 3 which does notform an oxide.(vii) The element having maximum metalliccharacter in period 2.(viii) The element having largest atomic size inperiods.(ix) The more non-metallic element from theelements S, P, CI and Ar.(x) The noble gas having duplet arrangement ofelectrons.(xi) A light element of period 3 with a neutron/proton ratio of about 1.

Answer»

1. 3

2. Argon

3. group 18

4. chlorine

5. lithium

6. sodium

7. lithium

8. The FIRST elements of all periods

9. Chlorine

10. helium

11. sodium

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