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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Mikez on February 20, 2006, 09:39:48 PM

Title: Natural Charge, Valence Electrons, and Electron Configuration
Post by: Mikez on February 20, 2006, 09:39:48 PM

Here are all my questions together, plz I really need your help, I have a chemistry final test in three days.

How do I know the natural ionic charge of an element?

How do I know the number of valence electrons in a metal (aka. transitional metals)?

How do I write the abbved form of the electron configuration?

thanks

Title: Re:Natural Charge, Valence Electrons, and Electron Configuration
Post by: Mitch on February 20, 2006, 10:00:31 PM

Have you opened a book? Check out our periodic table for question 3.

Title: Re:Natural Charge, Valence Electrons, and Electron Configuration
Post by: Mikez on February 21, 2006, 03:31:27 PM

I really can't find the answer to this question and I REALLY need to find out how to know the natural ionic charge of an element???

what do you mean check out the periodic table for question 3, it doesn't answer the question!?!

My teacher says this is all suppose to be review but I never learned any of this!?!

please help :'(

Title: Re:Natural Charge, Valence Electrons, and Electron Configuration
Post by: Mikez on February 21, 2006, 08:12:40 PM

how do I know the natural ionic charge ???

Title: Re:Natural Charge, Valence Electrons, and Electron Configuration
Post by: constant thinker on February 21, 2006, 08:33:37 PM

As far as question 3 goes look at the periodic table:
http://www.chemicalforums.com/index.php?page=periodictable

If I click on Fe (iron) it will bring me down to it. If you read the information it has you will see "Electron Configuration of Iron: [Ar]4s²3d⁶". This is the abbreviated electron configuration. To right it you go the Noble Gas in the row above the element you want to write. In Fe's case it's Ar (argon). From there you right out the rest of the electron configuration from Ar leaves off.

The way I think of it is just take that last noble gas before the element. Put the noble gas's symbol in brackets ([]) and then write out your elements valence electrons.

This is much easier to show in person.

As as natural ionic charge what do you mean by that. Are talking about its oxidation number?

Also you can tell valence electrons by where is on the periodic table.

You should probably ask your teacher about all this if you don't understand. Trust it's much easier explained when you face to face with someone and you have a periodic table in front of you.

Title: Re:Natural Charge, Valence Electrons, and Electron Configuration
Post by: Mikez on February 22, 2006, 05:28:55 PM

thank you for the explaination, I just want to know if there is a way to "know" the number of valence e- for transitional metals (a pattern)?

Title: Re:Natural Charge, Valence Electrons, and Electron Configuration
Post by: constant thinker on February 22, 2006, 07:42:29 PM

Maybe this link will help you:
http://en.wikipedia.org/wiki/Transition_metals