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