C1.2.2 Isotopes Flashcards
1
Q
Atomic number meaning
A
Bottom number - the number of protons in nucleus, smaller number
2
Q
Mass number meaning
A
Top number and total number of protons and neutrons. (Atomic number + number of neutrons)
3
Q
What are isotopes
A
Isotopes are atoms within the same number of protons and electrons but different numbers of neutrons.
4
Q
How else can this be put?
A
The same atomic number but a different mass number.
5
Q
What are ions
A
Ions are charged particles. Formed when atoms or groups of atoms lose or gain electrons. This can happen during chemical reactions
