Nuclear equation? 10 easy points.?

Question

I have no idea how to do these. Please help, thanks.

1. Write the nuclear equation that occurs when Radium-226 emits an a-particle.

2. Write a nuclear equation for a-emission from plutonium-234

3. Write the nuclear equation for B-particle emission from Cobalt-60

Answer 1

226            

     88 Ra --->    

222

86 Rn +

4

2 He

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244            

94 Pu --->    

240

92 U +

4

2 He

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60                        

27 Co --->    

60

28 Ni +

0

-1 e