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