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