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