How are valence electrons used by an element?

Answer 1

Helps us determine a compound and its reactivity.

Valence electrons are the bonding electrons when looking at a compound's ability to form (I'm not talking about charge). An element's valence electron tells us about its ability to react and not react. More rules to this, but that's the gist of it.

E.g. Na = 1 valence electron and Cl has 7 valence electrons. They can form an ionic bond because they make up an octet atom.

Hope this helps :)

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Answer 2

Jose Ayala

The electrons in an atom's outermost shell that control an atom's capacity to gain, lose, or share electrons with other atoms are known as valence electrons, and they are essential to an element's chemical properties and reactivity. An element uses valence electrons to form chemical bonds with other elements.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.