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IRINA_888 [86]
3 years ago
9

What are 1A, 3B, and 7A examples of on the periodic table?

Chemistry
2 answers:
shepuryov [24]3 years ago
6 0

Answer:

1A, 3B, and 7A are examples of group _ on the periodic table. ... Elements in group 2 are all called alkaline earth metals.

Explanation:

Hitman42 [59]3 years ago
3 0

Answer:

Groups

Explanation:

1 A, 3 B, and 7 A are examples of  group number on the periodic table

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Answer:

See explanation and image attached

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"A formal charge (FC) is the charge assigned to an atom in a molecule, assuming that electrons in all chemical bonds are shared equally between atoms, regardless of relative electronegativity" (chemlibretext).

We can obtain the formal charge from the formula;

Formal Charge = [number of valence electrons on atom] – [non-bonded electrons + 1/2number of bonds].

A structure in which SO2 has a zero formal charge is attached to this answer.

Image credit: Chemtopper

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