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