Answer :
a) 799 => Boron => 13th group
b) 736 => Magnesium => 2nd group
c) 1000 => Sulphur => 16th group
In physics and chemistry, ionization energy, ionisation energy is the minimal energy required to cast off the maximum loosely bound electron of an isolated gaseous atom, wonderful ion, or molecule.
The ionization energy is a measure of the capability of an element to go into into chemical reactions requiring ion formation or donation of electrons. it's also typically associated with the character of the chemical bonding inside the compounds formed by the elements.
Ionization power relies upon on two factors: The force of appeal among electrons and the nucleus. The force of repulsion among electrons.
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