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