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