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