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