2A.15

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Sophia B 3G
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Joined: Fri Sep 24, 2021 6:13 am

2A.15

Postby Sophia B 3G » Wed Oct 27, 2021 1:19 pm

Why is 2A.15 part (D) +3? I thought it would be +1. Thanks!
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Simren Nagra 1D
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Re: 2A.15

Postby Simren Nagra 1D » Wed Oct 27, 2021 1:31 pm

It would be Ga3+ because its electron configuration is: [Ar]3d104s24p1. And thus to get the configuration of the noble gas, it would lose the electrons in 4s and 4p (3e-), leaving a charge of +3.
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Crystal Ma 2J
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Re: 2A.15

Postby Crystal Ma 2J » Wed Oct 27, 2021 1:36 pm

Gallium has 3 valence electrons, meaning that it would lose 3, giving it a charge of +3!
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Sophia B 3G
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Re: 2A.15

Postby Sophia B 3G » Thu Nov 04, 2021 9:07 pm

Simren Nagra 1D wrote:It would be Ga3+ because its electron configuration is: [Ar]3d104s24p1. And thus to get the configuration of the noble gas, it would lose the electrons in 4s and 4p (3e-), leaving a charge of +3.

This was helpful. Thank you!
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Sophia B 3G
Posts: 103
Joined: Fri Sep 24, 2021 6:13 am

Re: 2A.15

Postby Sophia B 3G » Thu Nov 04, 2021 9:08 pm

Crystal Ma 1B wrote:Gallium has 3 valence electrons, meaning that it would lose 3, giving it a charge of +3!

Oh okay. This makes sense now. Thank you.
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