A) electron B) transfer C) proton D) directional E) transiton
A) lead B) gold C) mercury D) boron E) tin
A) halogens B) the hydrogen group C) alkali metals D) actinides E) the boron family
A) rare earths B) iron triad C) halogens D) noble gases E) common earths
A) tin B) cobalt C) platinum D) zinc E) lead
A) the boron family B) actinides C) noble gases D) lanthanides E) halogens
A) group 14 B) group 15 C) group 1 D) group 2 E) group 16
A) H B) h C) Hg D) Hf E) He
A) helium B) chlorine C) iodine D) sugars E) salts
A) They are liquid metals. B) They are worth more money. C) They have magnetic properties. D) They never rust. E) They glow in the dark.
A) periods B) metaloids C) families D) groups E) triads |