Question

what is valence electron? what is octene number​

Answer 1

a valence electron is an outer shell electron that is associated with an atom

octene number ???

octane number Octane number measures the performance of gasoline while cetane number measure the performance of the diesel.

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Answer 2

Answer:

Valence Electron:

In chemistry, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair. The presence of valence electrons can determine the element's chemical properties, such as its valence—whether it may bond with other elements and, if so, how readily and with how many. For a main group element, a valence electron can exist only in the outermost electron shell; in a transition metal, a valence electron can also be in an inner shell.

Octate :

The octet rule states that atoms with an atomic number below 20 tend to combine so that they each have eight electrons in their valence shells, which gives them the same electronic configuration as a noble gas.

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