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