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