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Properties of subatomic particles. 

a. Fill in the missing relative masses and relative charges for each of the subatomic particles. 

 

Relative mass 

Relative charge 

a.Electron

 

1- 

b.Proton

 

 

c.Neutron

1839 

 

 

b. Balance the equations for the correct element next to its description at 25 degrees Celsius. 

a.Ca→     _ +_

b. K→     _ +_

c. Sr→     _+_

d. Rb→    _+_

 

c. Balance the equation for the reactions of cautions with electrons.

a.Mg 2+ +_ →_

b. Li+     +_→_

c. 2H+    +_→_

d. Na+    +_→_

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  • Category:- Chemistry
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