Atoms Flashcards
1
Q
What is the difference between an atom and a molecule ?
A
An atom is made up of a single particle while a molecule is two or more atoms bonded together and an element is a substance made up of only one type of atom while a compound is made up of different atoms bonded together
2
Q
How much smaller is the nucleus than the atom it’s self
A
10,000
3
Q
What is the relative charge of a proton
A
+1 or positive
4
Q
Why is the relative mass of a proton
A
1
5
Q
What is the relative charge of the electron
A
-1 ( negative )
6
Q
What is the relative mass of the electron
A
Negible
7
Q
What is the relative charge of a neutron
A
0 ( no charge )
8
Q
What is the relative mass of a neutron
A
1
9
Q
What do atoms in elements always have ?
A
Equal number of protons and electrons
