Question

.. валентность хрома

Answer 1

Cr³ валентность 3
степень окисления +

Answer 2

Valence of Chromium

The valence of an element refers to the number of electrons that an atom of that element can gain, lose, or share when it forms chemical compounds. Chromium (Cr) is a transition metal with multiple valence states.

According to the search results, chromium can exhibit different valence states, including:

1. Chromium in the +2 valence state: Chromium can form compounds where it has a valence of +2, such as CrCl2 (chromium(II) chloride) and Cr(OH)2 (chromium(II) hydroxide). 2. Chromium in the +3 valence state: Chromium can also form compounds where it has a valence of +3, such as CrCl3 (chromium(III) chloride) and Cr(OH)3 (chromium(III) hydroxide). 3. Chromium in other valence states: Chromium can also exhibit other valence states, such as +4 and +6, in certain compounds. For example, chromium can exist in the +4 valence state in compounds like CrO2 (chromium(IV) oxide) and Cr2(SO4)3 (chromium(IV) sulfate). It can also exist in the +6 valence state in compounds like CrO3 (chromium(VI) oxide) and Na2CrO4 (sodium chromate).

It's important to note that the valence of an element can vary depending on the specific compound it forms. Chromium's valence states are determined by the number of electrons it gains, loses, or shares during chemical reactions.

Please let me know if there's anything else I can help you with!