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en.wikipedia.org/wiki/List_of_oxidation_states_of_the_elements

This is a list of known oxidation states of the chemical elements, excluding nonintegral values. ... 11, sodium, −1, Na, +1+1+1, 1. 12, magnesium, Mg, +1, +2 +2, 2.

chemed.chem.purdue.edu/genchem/topicreview/bp/ch2/oxnumb.html

The oxidation number of simple ions is equal to the charge on the ion. The oxidation number of sodium in the Na+ ion is +1, for example, and the oxidation ...

www.quora.com/What-is-the-oxidation-number-of-sodium

Sodium exhibits only the +1 oxidation state in compound formation. This highly electropositive and reactive metal usually forms ionic compounds in +1 state.

socratic.org/questions/what-is-the-oxidation-number-of-sodium-na-in-pure-sodium-na

Jul 9, 2016 ... In sodium metal, the oxidation number is 0 . Elements are zerovalent .

www.wikihow.com/Find-Oxidation-Numbers

However, in sodium hydride, NaH, hydrogen has an oxidation number of -1 because the Na ion has a charge of +1 and, for the compound's total charge to equal ...

www.khanacademy.org/science/chemistry/chemical-reactions-stoichiome/types-of-chemical-reactions/a/oxidation-number

How to find oxidation numbers, and a brief introduction to oxidation-reduction ( redox) reactions.

chemistry.tutorvista.com/inorganic-chemistry/oxidation-number.html

The oxidation number of a mono atomic ion is the same as the charge on the ion. Therefore in NaCl the oxidation number assigned to sodium is +1, and the ...

www.chemguide.co.uk/inorganic/redox/oxidnstates.html

Metal hydrides include compounds like sodium hydride, NaH. In this, the hydrogen is present as a hydride ion, H-. The oxidation state of a simple ion like hydride ...

nobel.scas.bcit.ca/chem0010/unit5/5.10.1_assignoxNumber.htm

The rules for assigning oxidation numbers are in the Chemist's tools A chemist's tools . ... Since sodium ion is +1, the nitrate ion (NO3-) must have a -1 charge ...