Page 22 - The Periodic Table Book

1
H Hydrogen

1 1 0 State: Gas
Discovery: 1766
Hydrogen Forms This gaseous
The Orion Nebula stellar nursery

is giving birth to
thousands of stars.

Pure hydrogen in a glass sphere

The Sun

Hydrogen gas is trapped
inside this glass sphere, and
gives off a purple glow
when electrified.

The Sun is
four-fifths
hydrogen.
Jupiter
Three quarters
of this planet is
made up of layers
of gaseous and
liquid hydrogen.
Water Each water

molecule has
two atoms of
hydrogen and
one of oxygen.

Hydrogen is the first member of the periodic other gases, such as helium and methane. On
table because it has the simplest atoms of Earth, hydrogen is commonly found in water.
all elements: they contain just one proton Although it is rare in Earth’s atmosphere, hydrogen
and one electron. Pure hydrogen is a is the most common element in the Universe.
transparent gas. The biggest planets, such as Stars, such as the Sun, contain large amounts
20 Jupiter, are vast balls of hydrogen mixed with of hydrogen. At the centre of a star, atoms of

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