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