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