1 H 1.008

Hydrogen

Category: Nonmetal | State: Gas

Atomic Properties

Atomic Number 1
Atomic Mass 1.008
Electronic Configuration 1s¹

Periodic Table Placement

Group 1
Period 1
Block s-block

Physical Properties & Discovery

Melting Point -259.16°C
Boiling Point -252.9°C
Density 0.00008988 g/cm³
Discovered By Henry Cavendish (1766)

Frequently Asked Questions about Hydrogen