Question

find the nature of first 18 elements ​

Answer 1

Answer:

They are either metallic or non - metallic in nature. It depends on the electronic configuration.

Explanation:

First 18 elements :

H – Hydrogen

He – Helium

Li – Lithium

Be – Beryllium

B – Boron

C – Carbon

N – Nitrogen

O – Oxygen

F – Fluorine

Ne – Neon

Na – Sodium

Mg – Magnesium

Al – Aluminium

Si – Silicon

P – Phosphorus

S – Sulphur

Cl – Chlorine

Ar – Argon

Answer 2

Answer:

578

Explanation:

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