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