Question

composition of the nuclei of two atomic species x and y are given as under protons of x and y is 6 meutrons of x and y is 6,8 respectively give the mass numbers of x and y what is the relation between the two species

Answer 1

mass no. of x is = n+P
=6+6
=12
mass no. of y is =n+P
=6+8
=14
x is magnesium which is an active metal
and y is silicon which is a metalloid.

Answer 2

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Mass number of X = Number of protons + Number of neutrons

= 6 + 6

= 12

Mass number of Y = Number of protons + Number of neutrons

= 6 + 8

= 14

These two atomic species X and Y have the same atomic number, but different mass numbers. Hence, they are isotopes.

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