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