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