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