Among the elements b, Al, C and Si (a)Which has the highest first ionization enthalpy? (b)Which has the most negative electron gain enthalpy? (c)Which has the largest atomic radius? (d) Which has the most metallic character?

Among the elements b, Al, C and Si (a)Which has the highest first ion

1.	Among the elements b, Al, C and Si (a)Which has the highest first ionization enthalpy? (b)Which has the most negative electron gain enthalpy? (c)Which has the largest atomic radius? (d) Which has the most metallic character?
Answer» Answer :`B lt Al lt MG lt K` (a) C , (b)SI, (c) Al , (d) Al