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