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