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Helium and hydrogen molecules, artwork

Helium and hydrogen molecules, artwork

A152/0217

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Credit

RUSSELL KIGHTLEY / SCIENCE PHOTO LIBRARY RUSSELL KIGHTLEY / SCIENCE PHOTO LIBRARY

Restrictions:

This image may not be used in educational posters.

Caption

Helium and hydrogen molecules. Computer artwork of molecules of helium and hydrogen, the two lightest and most abundant elements in the universe. Helium (He) is a monatomic chemical element, meaning every molecule of the gas comprises only one atom. Each atom consists of a nucleus (orange), surrounded by an electron cloud (pink), which contains two electrons orbiting in a single energy level. Hydrogen (H2), however, is a diatomic molecule. Each atom has a nucleus (dark green) surrounded by an electron cloud (light green), containing only one electron. Therefore in a gaseous state (as is seen here), two atoms will combine to form a covalently bonded molecule, which has two electrons orbiting the nucleus, increasing its stability.

Release details

Model release not required. Property release not required.

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