How many electron pairs are present in

How many electron pairs are present in

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number of valence electrons in oxygen
How many electron pairs are present in

A total of 3 guests made comments

2026-01-29

The product arrived on time and in perfect condition. It matches the description and seems to be of good quality.

2026-01-23

It’s lightweight, functional, and works exactly as it should.

2026-01-27

The product does what it’s meant to do and feels reliable.

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