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