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