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man-made elements

(Encyclopedia)man-made elements: see synthetic elements. ...

Rutherford, Ernest Rutherford, 1st Baron

(Encyclopedia)Rutherford, Ernest Rutherford, 1st Baron, 1871–1937, British physicist, b. New Zealand. Rutherford left New Zealand in 1895, having earned three degrees from the Univ. of New Zealand but having fail...

chemistry

(Encyclopedia)chemistry, branch of science concerned with the properties, composition, and structure of substances and the changes they undergo when they combine or react under specified conditions. Organic chemi...

element

(Encyclopedia)CE5 element, in chemistry, a substance that cannot be decomposed into simpler substances by chemical means. A substance such as a compound can be decomposed into its constituent elements by means o...

Periodic Table of the Elements (table)

(Encyclopedia)Periodic Table of the Elements (showing atomic number and atomic symbol; click on atomic symbol for more detailed information) Lanthanide Series(Rare Earth Elements) Actinide Series(Radioactive Rar...

Periodic Table of the Elements: Actinium

(Encyclopedia)Periodic Table of the Elements: Actinium ...

Periodic Table of the Elements: Aluminum

(Encyclopedia)Periodic Table of the Elements: Aluminum ...

Periodic Table of the Elements: Americium

(Encyclopedia)Periodic Table of the Elements: Americium ...

Periodic Table of the Elements: Antimony

(Encyclopedia)Periodic Table of the Elements: Antimony ...

Periodic Table of the Elements: Argon

(Encyclopedia)Periodic Table of the Elements: Argon ...