Atomic Structure Flashcards
1
Q
Describe the properties of alkali metals
A
They are very reactive metals
2
Q
Describe the properties of the halogens
A
They are very reactive non metals
3
Q
Describe the properties of the noble gases
A
They are very unreactive non metals
4
Q
List the 7 diatomic elements
A
- Hydrogen
- Nitrogen
- Fluorine
- Oxygen
- Iodine
- Chlorine
- Bromine
5
Q
Define isotopes
A
Something with the same number of protons but different number of neutrons
OR
Something with the same atomic number but different mass number
6
Q
Why are atoms neutral?
A
Because they have the same number of protons and electrons
7
Q
Where are the subatomic molecules found?
A
Protons & neutrons - nucleus
Electrons - electron shells/energy levels
