A) electron B) proton C) transiton D) directional E) transfer
A) boron B) gold C) lead D) tin E) mercury
A) the hydrogen group B) alkali metals C) halogens D) actinides E) the boron family
A) iron triad B) noble gases C) halogens D) rare earths E) common earths
A) tin B) lead C) platinum D) cobalt E) zinc
A) the boron family B) halogens C) lanthanides D) noble gases E) actinides
A) group 2 B) group 16 C) group 14 D) group 15 E) group 1
A) Hf B) He C) H D) h E) Hg
A) chlorine B) sugars C) helium D) salts E) iodine
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) families B) groups C) metaloids D) periods E) triads |