Question

3. An atom having stable electronic configuration
4 A molecule formed by sharing of electrons (covalency:
5 A metallic atom having unstable electronic configuratie
Select the correct answer from the choice in bracket to com
1. An element X has six electrons in its outer or valence
Its valency is
-2 [+2/-2/-1]
2 An element Y has electronic configuration 2.8.6.
The element Y' is a metes
[metal/non-me
8. А
(proton/neutron) is a sub-atomic particle
An element Z with zero valency is a [metal/noble
Magnesium atom with electronic configuration
configuration by losing two electrons, thereby achie
the nearest noble gas
(neon/argon​

Answer 1

Explanation:

3. noble gases

4. Covalent molecules

5. Alkali metal

1.-2

2. nonmetal

noble