Caption: A cartoon diagram of
the neutral
hydrogen (H-1)
atom
(AKA Protium):
the simplest of all
neutral
atoms.
Hydrogen (H-1)
consists of
1 proton
(represented abstractly by the
red dot with a
+ sign) and
1
electron
(represented abstractly as the
blue dot
with a - sign
and more correctly in
quantum-mechanics understanding
by the
grey
probability distribution).
The hydrogen (H-1)
atom
has the simplest of all
atomic nuclei:
its atomic nucleus consists
of just 1
proton.
The image is
not-to-scale.