1
H
Hydrogen
1.008 u
Hydrogen
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Period
1
Group
1
Block
s-block
Phase (STP)
Gas
Hydrogen is the lightest and most abundant element in the universe. It is a colorless, odorless, tasteless, and highly combustible gas.
Appearance: Colorless gas
Compounds Containing Hydrogen
More Nonmetal
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Frequently Asked Questions
What is Hydrogen?
Hydrogen (H) is a chemical element with atomic number 1. It is a gas at standard temperature and pressure, classified as a nonmetal.
What are the key properties of Hydrogen?
Hydrogen has an atomic mass of 1.008 u, density of 8.988e-05 g/cm³, melting point of -259.2°C, boiling point of -252.9°C.
What is the electron configuration of Hydrogen?
The electron configuration of Hydrogen is 1s1. It is in the s-block of the periodic table.
Who discovered Hydrogen?
Hydrogen was discovered by Henry Cavendish in 1766.
What is the electronegativity of Hydrogen?
Hydrogen has an electronegativity of 2.2 on the Pauling scale.