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