19,879
edits
Changes
Atom
,→About Atoms beyond The Dalton Model
|}
: In an [[atom]] the number of [[protonelectron]]s is always the same as the number of [[electronprotons]]sin the [[nucleus]].
: Different [[atom]]s can have different numbers of [[proton]]s and [[neutron]]s.
: The simplest [[atom]] is [[Hydrogen]] which has 1 [[proton]] and 1 [[electron]] and no [[neutron]]s.