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