How many valence electrons are in the atoms selenium, Z = 34, and chlorine, Z = 17?A)Number of valence electrons in Se is 4 electrons Number of valence electrons in Cl is 5 electronsB)Number of valence electrons in Se is 6 electrons Number of valence electrons in Cl is 7 electronsC)Number of valence electrons in Se is 14 electrons Number of valence electrons in Cl is 7 electronsD)Number of valence electrons in Se is 34 electrons Number of valence electrons in Cl is 17 electrons

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Asked Nov 27, 2019
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How many valence electrons are in the atoms selenium, Z = 34, and chlorine, Z = 17?
A)Number of valence electrons in Se is 4 electrons Number of valence electrons in Cl is 5 electrons
B)Number of valence electrons in Se is 6 electrons Number of valence electrons in Cl is 7 electrons
C)Number of valence electrons in Se is 14 electrons Number of valence electrons in Cl is 7 electrons
D)Number of valence electrons in Se is 34 electrons Number of valence electrons in Cl is 17 electrons
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Expert Answer

Step 1

The electronic configuration of Seleni...

For Se
or [Ar] 3d0 4s'4p*
1s2 2s2 2ps 3s2 3p5 4s2 3d10 4p
For Cl
1s2 2s2 2p5 3s2 3p
or [Nel 3s 3p
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For Se or [Ar] 3d0 4s'4p* 1s2 2s2 2ps 3s2 3p5 4s2 3d10 4p For Cl 1s2 2s2 2p5 3s2 3p or [Nel 3s 3p

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