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