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