Question

The valency of Nitrogen, Boron, Magnesium and Sodium is 3, 3, 2 and 1.
Write the atomic number and the symbol of an element which has mass
number 32 and the number of neutron 16 in the nucleus.​

Answer 1

Answer:

mass number -no of neutrons =no of protons= no of electrons

so 32-16=16 will be the atomic number

the element is sulphur

symbol is : S