Ions that are made of more than one atom are called polyatomic ion
Data given
Number of electron = 108
Number of neutron = 158
Required
Mass number=?
Solution
As we know that mass number = No of proton + No of neutron
In any neutral atom the number of proton is always equal to number of electron
So number of proton will be = 108
However the atom has +1 charge which means that one proton is less than no of electron so proton number is 107.
Put values in above formula, we will get
Mass number= 107+108
= 215 Mass number
Answer:
As the erosion happens often, there is a principal way of solving or reducing the erosion, like sea wall.
Sea walls should be formed in places where erosion hits. They serve to stop the water and return it to the sea.
Explanation:
People are the main reason for erosions. They are using explosions for fishing and that is how they are degrading the coastline.
Other ways of stoping the erosion are sand, vegetations, sandbags, etc.
