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