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