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