Matter Flashcards
1
Q
How many shells do atoms have
A
3
2
Q
Proton symbol
A
+
3
Q
Neutron
A
(Nothing)
4
Q
Electron symbol
A
-
5
Q
How many electrons can the first shell hold up to
A
2
6
Q
How many electrons can the second shell holds
A
8
7
Q
How many electrons can the third shell hold
A
8
8
Q
What do atoms make up
A
EVERYTHING
9
Q
What is the mass of proton
A
1
10
Q
What is the mass of neutron
A
1
11
Q
What is the mass of electrons
A
1/2000
12
Q
What are elements made up of
A
One type of atom
