From 2ef742f2346411b71fe7efce71d41b29fd047e25 Mon Sep 17 00:00:00 2001 From: phidias Date: Wed, 11 Feb 2026 15:58:00 +0000 Subject: [PATCH] docs: update education/chemistry/1 --- education/chemistry/1.html | 91 +++++++++++++++++++++++++++++++++++++- 1 file changed, 90 insertions(+), 1 deletion(-) diff --git a/education/chemistry/1.html b/education/chemistry/1.html index 598f27a..9e76a07 100644 --- a/education/chemistry/1.html +++ b/education/chemistry/1.html @@ -2,7 +2,7 @@ title: 1 description: published: true -date: 2026-02-11T15:51:27.344Z +date: 2026-02-11T15:57:59.376Z tags: editor: ckeditor dateCreated: 2026-02-11T14:58:54.870Z @@ -485,4 +485,93 @@ dateCreated: 2026-02-11T14:58:54.870Z

 

Anion

Atom that gains e-, -ve ions

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Usually group 5 to 7. Like N3-, S2-, Cl-

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 NameCompositionColor (Water)
O2-Oxide ionMonoatomicReact
S2-Sulphide ion
N3-Nitride ion
F-Fluoride ionColorless
Cl-Chloride ion
Br-Bromide ion
I-Iodide ion
OH-Hydroxide ionPolyatomic
NO2-Nitrite ion
NO3-Nitrate ion 
SO32-Sulphite ion
SO42-Sulphate ion
HSO4-Hydrogensulphate ion
CO32-Carbonate ion 
HCO3-Hydrogencarbonate ion
MnO4-Permanganate ionPurple
Cr2O72-Dichromate ionOrange
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