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