Question

First 30 elements with atomic number, atomic mass, molar mass, valency & ionic charge

Answer 1

1 - Hydrogen

Atomic number = 1

Atomic mass = 1

Molar mass = 1.00794 u

Valency = 1

Ionic charge = +1

2 - Helium

Atomic number = 2

Atomic mass = 4

Molar mass = 4.002602 u

Valency = 0

Ionic charge = 0

3 - Lithium

Atomic number = 3

Atomic mass = 7

Molar mass = 6.941 u

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