Properties Of The Main Groups Of Elements Flashcards
1
Q
Alkali metals
A
Group 1
React rapidly with water to produce alkaline solution and hydrogen gas
Become more reactive down the group
2
Q
Halogens
A
Group 7
Fluorin and chlorine are gases
Bromine is one of only 2 liquid elements
Iodine is solid
They exist as diatomic molecules
Less reactive as u go down
3
Q
Noble gases
A
Group 0
Very unreactive
Monatomic
4
Q
Transition metals
A
Between groups 2 and 3
Examples are iron copper gold
Generally quite dense
Many form brightly coloured compounds
5
Q
Isotopes are …
A
Atoms with the same atomic number bur different mass number
