How do you find the number of valence electrons?

Answer 1

Refer to the explanation.

For the representative (main group) elements, which are groups 1-2, and 13-18, or groups IA-IIA, and IIIA-VIIIA, the group number indicates the number of valence electrons.

Groups 1-2, or IA-IIA, have two valence electrons.

Groups 13-18, or IIIA-VIIIA, the number of valence electrons are 3-8.

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Answer 2

The number of valence electrons for an element can be found by looking up its group number on the periodic table. For main group elements (groups 1, 2, and 13–18), the number of valence electrons is equal to the group number; for transition metals, it can differ.

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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.

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.

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.

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.

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