Lithium

Name- comes from "lithos" meaning stone because it was found in mineral while most elements were being discovered in plants

Atomic Mass- 6.941

Atomic Number- 3

Protons- 3

Electrons- 3

Neutrons- 4

Boiling Point- 1615 K

Melting Point- 453.69 K

Freezing Point- 453.69 K

Density- 0.534 g·cm⁻³

^{Electro negativity-} 0.98 (Pauling scale)