The Atom Flashcards
1
Q
The three different sub-atomic particles
A
- Protons
- Neutrons
- Electrons
2
Q
Protons
A
- Inside the nucleus
* Positive charge
3
Q
Neutron
A
- inside the nucleus
* Neutral
4
Q
Electron
A
- Outside the nucleus
* Negative charge
5
Q
Atomic number
A
The number of protons in an atom
6
Q
Mass number
A
The number of protons plus neutrons
7
Q
Isotopes
A
Atoms which have the same number of protons but different number of neutrons
