find corroletion oxygen : valency 2 : chlorine
Answers
Answer:
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Explanation:
In chemistry, a compound's valence number is the number of bonds formed by the electrons in the last (outer) shell (called valence electrons) of atoms to other atoms' valence electrons. The octet rule (the tendency of an atom to seek stability by filling its outer shell with eight electrons by forming valence electron bonds) can help you determine the valence of a compound once you know the maximum possible valence bonds each element can form.
Decipher which elements are present in your compound and how many molecules of each element by looking at the abbreviation in the compound name. For example, NaCl has two elements with one molecule of each element, Na (sodium) and Cl (Chlorine), and CaCl2 has two elements with one Ca (Calcium) molecule and two Cl (Chlorine) molecules.