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