From 378a41588a38d269885442a5f13466126882c7c9 Mon Sep 17 00:00:00 2001 From: phidias Date: Wed, 11 Feb 2026 15:48:59 +0000 Subject: [PATCH] docs: update education/chemistry/1 --- education/chemistry/1.html | 63 +++++++++++++++++++++++++++++++++++++- 1 file changed, 62 insertions(+), 1 deletion(-) diff --git a/education/chemistry/1.html b/education/chemistry/1.html index dee43bf..eed10cd 100644 --- a/education/chemistry/1.html +++ b/education/chemistry/1.html @@ -2,7 +2,7 @@ title: 1 description: published: true -date: 2026-02-11T15:42:38.277Z +date: 2026-02-11T15:48:58.466Z tags: editor: ckeditor dateCreated: 2026-02-11T14:58:54.870Z @@ -390,3 +390,64 @@ dateCreated: 2026-02-11T14:58:54.870Z

Noble gases are stable in atomic form because the outermost shell are fully filled.

Other element tend to lose, gain or share electron to achieve nearest fully filled electronic structure, that is duplet or octet structure.

 

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Cation

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Atom that loses e-, +ve ions

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Usually group 1 and 2. Like Li+, Na+, Mg2+

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For transition metal, 4s electron will be lost first. Like Ti2+, Cu+

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 NameColor (Water)
Li+Lithium ionColorless
Na+Sodium ion
K+Potassium ion
Ag+Silver ion
Mg2+Magnesium ion
Ca2+Calcium ion
Zn2+Zinc ion
Pb2+Lead (II) ion
Al3+Aluminium ion 
NH4+
(Polyatomic)		Ammonium ion
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Anion

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Atom that gains e-, -ve ions

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