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