Columbia Encyclopedia

Search results

500 results found

Pm

(Encyclopedia)Pm, symbol for the element promethium. ...

Pr

(Encyclopedia)Pr, symbol for the element praseodymium. ...

Ca

(Encyclopedia)Ca, symbol for the element calcium. ...

Br

(Encyclopedia)Br, symbol for the element bromine. ...

Ce

(Encyclopedia)Ce, symbol for the element cerium. ...

Be

(Encyclopedia)Be, symbol for the element beryllium. ...

Ta

(Encyclopedia)Ta, symbol for the element tantalum. ...

Browse by Subject