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