Homework 2A 12

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Dakota Walker 1L
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Joined: Wed Sep 18, 2019 12:17 am

Homework 2A 12

Postby Dakota Walker 1L » Tue Oct 29, 2019 9:11 pm

Which M2+ ions are predicted to have the following ground state configurations? [Ar]3d6, [Kr]4d9, [Ar]3d10 etc.
I don't understand what this question is asking, does anyone know how to go about answering it / what the answer is?

MMckinney_4H
Posts: 61
Joined: Sat Sep 28, 2019 12:16 am

Re: Homework 2A 12

Postby MMckinney_4H » Tue Oct 29, 2019 9:27 pm

You'd find the element with the same amount of elements as the given configuration then add two electrons to the element that corresponds to the configuration. For example: a) chromium has the same number of elements as the given configuration then add two electrons to get Iron. So Fe2+ would have the ground state configuration given.

Annie Chantasirivisal_4G
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Joined: Wed Sep 18, 2019 12:21 am

Re: Homework 2A 12

Postby Annie Chantasirivisal_4G » Tue Oct 29, 2019 11:18 pm

The M in M2+ also refers to the metal with the charge 2+, so the book is asking for metals/elements with a charge of 2+ that work with the various electron configurations you listed.

Sara Richmond 2K
Posts: 110
Joined: Fri Aug 30, 2019 12:16 am

Re: Homework 2A 12

Postby Sara Richmond 2K » Wed Oct 30, 2019 2:19 pm

M2+ is not actually an element. The problem is asking you to name the 2+ ions with those electron configurations. Imagine M as x in an algebraic function.


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