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