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s^2 p^6 d^10 f^14

or

1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^6 4d^10 4f^14

Depending on what you meant.

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Q: What is the number of electrons that each energy level or electron shell needs to fill the first four electron shells?
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Related questions

What Elements in the same row are filling up the same energy level as you move from left to right?

They have the same number of shells (or energy levels).


What is the set of numbers that shows the arrangement of electrons in their shells?

The set of numbers that shows the arrangement of electrons in their shells is known as the electron configuration. It is based on the principle that electrons fill the lowest energy levels first before moving to higher energy levels. The electron configuration is typically represented by a series of numbers and letters indicating the number of electrons in each energy level and orbital.


What are shells of electrons?

The electron shell is an energy level represented as the distance of an electron from the nucleus of the atom


As you move across a period elements have the same number of?

Electron shells


Where can you find electron shells?

An Electron shell is not a specific tangible or recognizable structure.Electron shells are essentially levels of energy where electrons of similar energies congregate.


How many electrons are in the with energy level of a fermium atom?

Fermium has seven electron shells.


If an atom has 11 electrons how many energy levels will it have?

Three electron shells.


What is an atom's electron configuration?

The arrangement of electrons in an atom.


Which statement describes the relative energy of electrons in the shells of a calcium atom?

An electron in the third shell has more energy than the electron in the second shell.


What is the number of of electron shells in CALCIUM?

4 electron shells; 2 electrons in first, 8 in second, 8 in third and 2 in valence shell.


Where is the location of electrons?

The electron can either be by itself outside of an atom, or can be in an atom in a series of energy 'shells' outside of the nucleus.


What causes the sheilding effect to remain constant across a period?

Electron shielding is not a factor across a period because they all have the same number of electron shells! No further (extra) shells means that they are all affected by electron shielding equally.