The periodic table Flashcards
1
Q
How are elements arranged in the periodic table?
A
- increasing atomic number
- Columns = groups (no. of electrons in outer shell)
- Rows = periods (no. of shells)
2
Q
Metals and oxides relationship
A
Metals have oxides which are basic, reacting with acids to give a salt and water
3
Q
Non- metals and oxides relationship
A
Non-metals have oxides which are acidic or neutral
4
Q
Why do elements in the same group have similar chemical properties
A
Because they have the same number of electrons in outer shell
5
Q
Why do noble gases (group 0) not readily react
A
They are inert (unreactive) because they have a full outer shell of electrons
