atomic structure Flashcards
1
Q
what is the larger number of an element on the periodic table
A
atomic mass
2
Q
isotopes
A
isotopes are elements with the same amount of protons and electrons but different amount of neutrons.
3
Q
atom
A
smallest part of an atom to exist.
4
Q
molecule
A
tiny particle made from more than one type of atom.
5
Q
element
A
a substance made up of one type of atome
6
Q
compound
A
a substance made up of 2 or more atoms chemically bonded which cannot be separated.
7
Q
mixture
A
2 or more atoms not chemically bonded which can be separated.
8
Q
nucleus
A
the centre of an atom.
9
Q
proton
A
makes up an atom-relative charge 1
10
Q
neutron
A
makes up an atom-relative charge 0
11
Q
electron
A
makes up an atom-1
12
Q
atomic mass
A
