Inorganic Chemistry by Chrispin Kowenje - HTML preview

17. Electronegativity falls down a group because,

a) the atoms become bigger

b ) more protons are added

c) the atomic radius becomes less defined

d) more electrons are added.

18. Aluminium flouride is ionic but aluminium iodide is covalent this is more

likely because,

a) Flourine is more electronegative than iodine,

b) iodine is bigger hence easily polarized by aluminium,

c) iodine is more of a metal than flourine,

d) aluminium is so big that it polarizes flourine.