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