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Two energy shells.

Made up as

1s2, 2s2

Shells 1 & 2 each have only 's' orbital and each orbital has only two electrons in it. The outer shell '2' is more energetic. The electrons are paired and spin in opposite directions to each other.

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lenpollock

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1y ago
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14y ago

Beryllium has two electron shells: 1s2.2s2

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12y ago

The valence of beryllium is two. Beryllium has the electronic configuration 1s2,2s2 so the valence is 2 for Be.

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11y ago

Two shells, the innermost having two out of two electrons and the second shell is incomplete having only two out of eight electrons.

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13y ago

Beryllium's electron configuration is 2s^2. It has two shells and has two electrons occupying the "s" orbital.

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11y ago

2
Electron configuration of beryllium: 1s2.2s2

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12y ago

Beryllium has two electron shells, each containing two electrons.

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9y ago

This is a chemical element. You can find the how many electron in a single atom by using a Periodic Table.

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12y ago

Beryllium has 2 electron shells.

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6y ago

Beryllium has two electron shells.

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Q: How many electron shells does the beryllium atom have?
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