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