Question

Organic chemistry

b. Which atom has the higher first ionization potential and why? (F or S) c. Which neutral atom has the larger atomic radius and why? (S or CI) d. Which anion has the larger radius and why? (Br'l or Se) e. Which cation has the larger radius and why? (Na* or Mg2)

Answer 1

b. F has higher ionization than S because F has small size than S.. F has large nuclear attraction than S

So remove electron from F more amount of energy is required than S

c.   S has large atomic radius than Cl.

Na , Mg, Al , Si, P , S, Cl are 3rd period elements . In a period left to right atomic radius is decreases.

d. Se^2- has large radius than Br^-

Se^2- , Br^- are isoelectronic ions. In isoelectrons more negative charge ions has less nuclear attraction .It has large radius than less negative charge.

e. Na^+ has large radius than Mg^2+

Na^+, Mg^2+ are isoelectronic ions. In isoelectronic ions positive chage increases nuclear attraction is increases. So Na^+ has large radius than Mg^2+