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Form 2 Chemistry Online Lessons: Atomic structure and the periodic table
Electronic arrangement of an atom with examples
(11m 40s)
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1.
Definition of Atom,Nucleus and energy levels
2.
The sub-atomic particles of an atom
3.
What is atomic number and mass number?
4.
Atomic properties of the first 20 elements of the periodic table
5.
What are Isotopes?
6.
What are energy levels of an atom?
7.
Electronic arrangement of an atom with examples
8.
How to draw dot and cross diagrams of an atom
9.
The periodic table and the modern periodic law
10.
Design of the modern periodic table: groups, periods and transitional metals
11.
Placing elements in the periodic table
12.
What is a relative atomic mass of an element?
13.
Measurement of Relative atomic mass
14.
How to calculate relative atomic masses of isotopic elements
15.
Ion formation with sample illustrations
16.
Definition of an ion with examples
17.
Definition of cations with examples and illustrations
18.
Definition of Anions with examples and illustrations
19.
Electron transfer during chemical reactions
20.
What are valence electrons?
21.
Definition of valency of an element with examples
22.
Definition of radicals and examples of some common radicals
23.
Oxidation number or oxidation state with explained examples
24.
What is a chemical formulae?
25.
Deriving the chemical formula of compounds
26.
Chemical equations and their key features
27.
Balancing chemical equations:rules and guidelines in balancing chemical equations
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