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