Atomic size of carbon is less than that of boron. Explain the statement.

Atomic size of calcium is _______ than that of potassium.

Size of cation is smaller than that of atom because of

The first ionization enthalpy of carbon is greater than that of boron, whereas the reverse is true for second ionization enthalpy. Explain.

Why the first ionisation energy of carbon atom is greater than that of boron atom whereas, the reverse is true for the second ionisation energy.

Why the atomic radius of gallium is less than that of Al?

The size of the clay particle is less than