Ions

Question 1

What are ions?

Answer 1

Ions are charged particles they can be single atoms. Or groups
When atoms lose electrons they form ions.

Question 2

What are negative ions called

Answer 2

Anions . They form when an atom gain an electron

They are negative as they gain electrons

Question 3

What is a positives ion called ?

Answer 3

Actions when they lose electrons

They are positives as they have more protons than electrons

Question 4

What groups are most likely to form ions and why?

Answer 4

Groups 1,2,6,7
As groups 1 and 2 are metals that lose electrons to form positive ions
Groups 6 and 7 are non metals that gain electrons to form negative ions
Also these groups have little electrons in the outest shell.

Question 5

How do you work out the formula of an ionic compound?

Answer 5

Write out the formulas of the elements ions
The overall charge on the formula must be zero

So work out a ratio that gives a neutral charge