Electronic Configurations Of The D- Block Elements
Chapter Name : The D- And F- Block Elements |
Sub Topic Code : 102_12_08_02_01 |
Topic Name : Electronic Configurations Of The D- Block Elements |
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Sub Topic Name : Electronic Configurations Of The D- Block Elements |
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Introduction
•
The electronic configuration of d-block elements is
(n-1)d1–10ns1–2
•
The (n–1) stands for the inner d orbitals which may
have one to ten electrons and the outermost ns orbital may have one or two
electrons.
• However, this
generalisation has several exceptions because of very little energy difference
between (n-1)d and ns orbitals
• The d orbitals of the
transition elements project to the periphery of an atom more than the other
orbitals (i.e., s and p), hence, they are more influenced by the surroundings
as well as affecting the atoms or molecules surrounding them.
Pre-Requisites:
Periodic table, elements
Activity:
Various precious metals such as silver, gold and
platinum and industrially important
Real Life Question:
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Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| group | Group is the vertical column on the periodic table which contains elements having the similar properties |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Copper wire Iron rod Gold coin | Iron, copper and gold are d block elements |
Real life uses :
To make jewellery, utensils, construction materials
Places to visit :
Bank, jewellery shop
Practical examples around us
| Examples | Explainations |
|---|---|
| Gold coins | • Various precious metals such as silver, gold and platinum and industrially important |
What you learn in Theory:
•
The electronic configuration of d-block elements is
(n-1)d1–10ns1–2
•
The (n–1) stands for the inner d orbitals which may
have one to ten electrons and the outermost ns orbital may have one or two
electrons.
• However, this
generalisation has several exceptions because of very little energy difference
between (n-1)d and ns orbitals
The d orbitals of the
transition elements project to the periphery of an atom more than the other
orbitals (i.e., s and p), hence, they are more influenced by the surroundings
as well as affecting the atoms or molecules surrounding them.
What you learn in Practice:
•
The electronic configuration of d-block elements is
(n-1)d1–10ns1–2
•
The (n–1) stands for the inner d orbitals which may
have one to ten electrons and the outermost ns orbital may have one or two
electrons.
• However, this
generalisation has several exceptions because of very little energy difference
between (n-1)d and ns orbitals
The d orbitals of the transition elements
project to the periphery of an atom more than the other orbitals (i.e., s and
p), hence, they are more influenced by the surroundings as well as affecting
the atoms or molecules surrounding them.