Columbia Encyclopedia

Search results

500 results found

Ag

(Encyclopedia)Ag, symbol for the element silver. ...

Zn

(Encyclopedia)Zn, symbol for the element zinc.

Zr

(Encyclopedia)Zr, symbol for the element zirconium. ...

Tm

(Encyclopedia)Tm, chemical symbol for the element thulium. ...

Cf

(Encyclopedia)Cf, symbol for the element californium. ...

darmstadtium

(Encyclopedia)darmstadtium, artificially produced radioactive chemical element; symbol Ds; at. no. 110; mass number of most stable isotope 281; m.p., b.p., sp. gr., and valence unknown. Situated in Group 10 of the ...

Lw

(Encyclopedia)Lw, former symbol of the element lawrencium, now Lr. ...

Mv

(Encyclopedia)Mv, former symbol of the element mendelevium, now Md. ...

seaborgium

(Encyclopedia)seaborgium sēbôrˈgēəm [key], artificially produced radioactive chemical element; symbol Sg; at. no. 106; mass number of most stable isotope 271; m.p., b.p., sp. gr., and valence unknown. Situated...

radon

(Encyclopedia)radon rāˈdŏn [key], gaseous radioactive chemical element; symbol Rn; at. no. 86; mass no. of most stable isotope 222; m.p. about −71℃; b.p. −61.8℃; density 9.73 grams per liter at STP; vale...