Matter is made
up of smaller
particles called
.
A
is
made up of a
particle called
.
Label the structure of an
atom as the teacher
describe its part.
An
is a
negatively
charged particle.
A
is a
positively
charged particle.
A
is
neutrally
charged particle.
An
is a
negatively
charged particle.
A
is a
positively
charged particle.
A
is
neutrally
charged particle.
Scanning electron microscope
The
and
that an
atom contains identifies
an
.
The
tells
the number of
or
present in
an atom.
The
of
is the
and
in an atom.
Electron: 7
Proton: 7
Neutron: 7
Atomic number: 7
Atomic mass: 14.007 or 14
Electron: 32
Proton: 32
Neutron: 41
Atomic number: 32
Atomic mass: 72.61 or 73
Electron: 24
Proton: 24
Neutron: 28
Atomic number: 24
Atomic mass: 51.9961 or 52
When
combine,
they form a
.
Atoms in molecules
are held by
.