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