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