Atoms Flashcards
1
Q
What subatomic particles are in the nucleus of the atom?
A
- Protons
- Neutrons
2
Q
What subatomic particle goes around the nucleus of the atom?
A
Electrons
3
Q
What is the charge of a proton?
A
+ 1
4
Q
What is the charge of a neutron?
A
0
5
Q
What is the charge on an electron?
A
- 1
6
Q
Do atoms have an overall charge?
Why?
A
- No
- The number of positive protons is equal to the number of negative neutrons
7
Q
How do you calculate the number of protons in an atom?
A
The atomic number
8
Q
How do you calculate the number of neutrons in an atom?
A
The mass number subtracted by the atomic number
9
Q
How many electrons can occupy the first shell?
A
2
10
Q
How many electrons can occupy the second and third shell?
A
8
11
Q
How do you calculate relative atomic mass?
A
100
12
Q
How do you calculate relative formula mass?
A
Amount x atomic mass number
