Multiple choice Which of the following statements is incorrect? Alkali metals are good conductors of heat and electricity. All alkali metals form bcc lattices. Alkali metals do not occur free in nature. Alkali metal cations are paramagnetic. IE2 of alkali metals is much higher than IE1. Reveal answer Fill a bubble to check yourself D Correct answer Explanation Alkali metal cations (Li+, Na+, K+, Rb+, Cs+, Fr+) have no unpaired electrons and are diamagnetic.