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