an element X has electronic configuration of 2 8 2 and another element has electronic configuration 2 8 7 .find their valency and what will be the formula of the compound thus formed
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Valency of X is 2 and valency of Y is -1
X---Magnesium
Y---Chlorine
So, Mg+Cl2-----MgCl2
X---Magnesium
Y---Chlorine
So, Mg+Cl2-----MgCl2
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Element x is Magnesium (Mg)=2 8 2
Other element is Chlorine (Cl)= 2 8 7
Valency of x is 2
And other is is 1
Compound formed is Magnesium chloride
Mg+Cl=MgCl2
Other element is Chlorine (Cl)= 2 8 7
Valency of x is 2
And other is is 1
Compound formed is Magnesium chloride
Mg+Cl=MgCl2
shabarinath020:
Sry it's Cl2
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