Atoms Flashcards
science revision
1
Q
what makes an atom stable
A
if the outer ring is full
2
Q
why is a neon stable
A
full shell
3
Q
why are certain atoms not stable
A
because the outer/second ring isnt’t full
4
Q
isotope (def)
A
a chemical element which have the same number of protons
5
Q
atom (def)
A
the smallest part of a chemical element
6
Q
what is a proton
A
positive
7
Q
what is a neutron
A
neutral
8
Q
what is an electron
A
negative
