Mos commonly 2 elements combine.
examples: H2, O2
Nonmetals form negatively charged ions, or anions. They do this because they need to gain one to three electrons in order to achieve an octet of valence electrons, making them isoelectronic with the noble gas at the end of the period to which they belong.
Answer:
The oxidation state of Cl in HCIO3 is <u><em>+5</em></u>
