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Number of electrons in the outermost shell for various compounds

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Think about the number of electrons in the outermost shell of the elements involved and write the chemical formula for:

a) A compound between potassium and iodine
b) A compound between hydrogen and nitrogen
c) A compound between carbon and bromine

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https://brainmass.com/chemistry/inorganic-chemistry/number-electrons-outermost-shell-various-compounds-50690

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a) A compound between potassium and iodine

Pottassium has one electron in the outermost shell and iodine has seven electrons. It can form KI, Potassium iodide to complete it souter shell with ...

Solution Summary

Writing the various formulas for compounds considering their outermost electron shells

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Electrons and Charges

1. State the number of valence electrons for a hydrogen atom and a chlorine atom.

2. State the number of valence electrons for a hydrogen atom and a chlorine atom in a covalent bond.
Use the periodic table to predict an ionic charge for each of the following metal ions.

3. Be ion

4. Cs ion

5. Ga ion

6. Pb ion
Use the periodic table to predict the ionic charge for each of the following nonmetal ions.

7. I ion

8. S ion

9. Se ion

10. P ion
Write out the electron configuration for each of the following nonmetal ions.

11. Br -

12. O2-

13. Se2-

14. N 3-

15. What is the general trend in electronegativity across a series in the periodic table?

16. Which elements are more electronegative, semimetals of nonmetals?
State whether the representative particle in each of the following substances is an atom, a molecule, or a formula unit.

17. plutonium, Pu

18. ozone, O3

19. plutonium(III) oxide. Pu2O3

20. Explain why the radius of a chloride ion (0.181 nm) is about twice that of chlorine atom (0.099 m).

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