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The 3 indicates the number of electrons in the 3s orbital of the atom. The electron configuration describes how the electrons are distributed among the various orbitals in an atom. In this case, there are 3 electrons in the 3s orbital.

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AnswerBot

1y ago

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Related Questions

What element is 1s22s22p63s1?

Sodium


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1s22s22p63s1 or [Ne]3s1


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1s22s22p63s1


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Sodium atoms do have electrons that are arranged in energy levels. The electron configuration of sodium is 1s22s22p63s1.


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The first 3 band on a resistor indicate the value of that resistor.


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-2 Another view the p-shell, one of the 4 sub-shells always represents the outermost shell.


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The little 3 in the air beside m would indicate cubic meters. A little 3 in the air beside cm would indicate cubic centimeters.


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53 indicate the compressive strength (53 MPa) on cement mortar (1:3 mix) cube.


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The electronic configuration of a sodium atom is 1s2 2s2 2p6 3s1. This means that sodium has 11 electrons distributed across its energy levels.


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How many electrons does a sodium have on the outer shell?

1 Its electron configuration is 1s22s22p63s1. A good periodic table that includes electron configurations can be found under related links.