8/17/2019 Chemsheets GCSE 008 Atoms Ions 2

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© www.CHEMSHEETS.co.uk 1-Jan-13 Chemsheets GCSE 008

For each of the following, (a) draw the electrons in their shells and (b) state the electronicstructure.

1  Na

structure:

2  Na+ 

structure:

3  Al

structure:

4  Al3+

 

structure:

5  F

structure:

6  F- 

structure:

7  O

structure:

8  O2- 

structure:

9  Ne

structure:

10  Ar

structure:

11  Mg

structure:

12  Mg2+

 

structure:

For each of the following particles, state what the particle is. The first one has been done

for you.

13 

protons = 8neutrons = 8electrons = 10

particle = O2- 

14 

protons = 16neutrons = 16electrons = 16

particle =

15 

protons = 16neutrons = 16electrons = 18

particle =

16 

protons = 17neutrons = 18electrons = 17

particle =

17 

protons = 17neutrons = 20electrons = 17

particle =

18 

protons = 17neutrons = 20electrons = 18

particle =

19 

protons = 12neutrons = 12electrons = 10

particle =

20 

protons = 9neutrons = 10electrons = 10

particle =

21 

protons = 26neutrons = 30electrons = 24

particle =

22 

protons = 82neutrons = 126electrons = 82

particle =

23 

protons = 7neutrons = 7electrons = 10

particle =

24 

protons = 53neutrons = 74electrons = 54

particle =

Complete the table below.

Question Particle  Atomicnumber

Massnumber

Protons Neutrons Electrons Electronstructure

25 31 15 15

26 20 20 18

27 6 8 6