A) proton B) transiton C) transfer D) electron E) directional
A) gold B) lead C) boron D) tin E) mercury
A) the hydrogen group B) halogens C) actinides D) the boron family E) alkali metals
A) halogens B) noble gases C) iron triad D) rare earths E) common earths
A) lead B) zinc C) cobalt D) platinum E) tin
A) the boron family B) actinides C) noble gases D) halogens E) lanthanides
A) group 2 B) group 14 C) group 16 D) group 1 E) group 15
A) Hg B) He C) Hf D) H E) h
A) iodine B) helium C) chlorine D) salts E) sugars
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) triads B) periods C) families D) groups E) metaloids |