Question

The number of non-metals and metalloids in s-block are ‘x’ and ‘y’ then x+y/2=

Answer 1

S block elements are: H,Li,Be,Na,Mg,k,Ca,Rb,Sr,Cs,Ba,Fr and Ra.

Out of this the only non-metals is H .So the no: of non-metals(x)= 1

There are no metalloids.

Therefore, y=0

x + y/2 = 1+ 0/2 =1

Hope this is clear :)

Answer 2

There are NO NON-METALS OR METALLOIDS ( HYDROGEN EXCLUDED) present in the s-block of the periodic table. So, x=1 and y=0.

Therefore, x+y/2=1