Open main menu
Key Stage Wiki
β
Search
Edit
Helium
Revision as of 12:20, 31 March 2019 by
NRJC
(
talk
|
contribs
)
(
diff
)
← Older revision
|
Latest revision
(
diff
) |
Newer revision →
(
diff
)
Contents
Key Stage 2
Meaning
Helium
is a
gas
.
Key Stage 3
Meaning
The
chemical symbol
for
Helium
.
Helium
is a
Noble Gas
with 2
protons
in the
nucleus
.
About Helium
Helium
has the
chemical formula
He
.
Helium
is
inert
.
Helium
is a
gas
at
room temperature
.
Helium
gas
is less
dense
than
air
.
An
atom
of
Helium
has two
electrons
in its
outer shell
.
Key Stage 4
Meaning
Helium
is a
Noble Gas
with 2
protons
in the
nucleus
.
About Helium
Helium
has the
chemical formula
He
.
Helium
is
inert
.
Helium
is a
gas
at
standard temperature and pressure
.
Helium
gas
is less
dense
than
air
.
An
atom
of
Helium
has two
electrons
in its
outer shell
.
