What is the complete ground state electron configuration for the selenium atom?

1 answer:

3 0

Se
1s² 2s²2p⁶ 3s²3p⁶ 4s²3d¹⁰3p⁴

You can do it just follow the periodic table
1)groups 1 and 2 give s-electrons , and number of the level equals number of the period
2)groups from 13 to 18 give p-electrons, and number of the level equals number of the period
3) groups from 3 to 12 give d-electrons and level one less than number of the period

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Explanation:

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copper (1) oxide Cu2O is reduced to metallic copper by heating in a stream of hydrogen gas. what mass of water is produced when

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Answer:
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Solution:
The equation for given reaction is as follow,

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According to equation,

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