subshell

Directory

References

Discover

New Zealand. Political/Physical map. Includes locator.

Where Is “Old Zealand”?

Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society

12 Novels Considered the “Greatest Book Ever Written”

Fish. Lionfish. Lion-fish. Turkey fish. Fire-fish. Red lionfish. Pterois volitans. Venomous fin spines. Coral reefs. Underwater. Ocean. Red lionfish swims by seaweed.

10 of the World’s Most Dangerous Fish

illustration of the walking titanosaurus, Patagotitan mayorum

Titanosaurs: 8 of the World's Biggest Dinosaurs

July, 2006, Launch of Space Shuttle Discovery STS-121. See attached for full caption information.

Will Light-Speed Space Travel Ever Be Possible?

Two chicks near an egg with a white background (poultry, chick, chickens, birds).

What Do Eggs Have to Do with Easter?

Entrants falling and tumbling over while chasing the cheese at the 2016 'Cheese Rolling' held at Cooper's Hill, in the Cotswolds, Brockworth England

7 of the World’s Most Dangerous Festivals

subshell

electronic configuration

Learn about this topic in these articles:

atomic spectrum

In spectroscopy: Angular momentum quantum numbers
… divides each shell into n subshells consisting of all electrons of the same principal and orbital quantum numbers.
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electronic configuration

In chemical bonding: Quantum numbers
…a given shell determines the subshell to which that orbital belongs. It follows from the allowed values of l that there are n subshells in a shell of principal quantum number n. As will be explained, there are 2l + 1 orbitals in a given subshell.
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X rays

In spectroscopy: Relation to atomic structure
…sublevels within each shell; these subshells are labeled by Roman numerals according to their energies.
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