Let's review Oxygen O 8 1s2 2s2 2p4

Let's review Oxygen O 8 1s2 2s2 2p4

$34.88

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number of valence electrons in oxygen
Let's review Oxygen O 8 1s2 2s2 2p4

A total of 3 guests made comments

2026-02-02

The materials used seem reliable and strong.

2026-02-04

Everything was packaged well and arrived safely.

2026-02-03

The quality seems stable and long-lasting.

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