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