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Atoms and molecules

1.	Atoms and molecules
2.	Laws of chemical combination
3.	Law of constant proportions
4.	Dalton's atomic theory
5.	Atom, molecule and element
6.	Introduction to symbols of atoms of different elements
7.	Atomic mass
8.	What is a Molecule?
9.	What is an ion?
10.	Writing Chemical Formulae I
11.	How to write chemical formulae?
12.	Molecular mass and mole concept

1.	'True' or 'false' about atoms and molecules Difficulty: easy	2
2.	Atoms and symbols Difficulty: easy	4
3.	Questions on basics of atoms and molecules Difficulty: easy	4
4.	Atomicity of molecules Difficulty: medium	4
5.	Atoms and symbols II Difficulty: medium	4
6.	Select the correct formulae of chemical compounds Difficulty: medium	4
7.	Find the number of atoms Difficulty: medium	2
8.	Analyse the questions about the atomicity of molecules Difficulty: medium	4
9.	Find the atomic mass for the elements Difficulty: medium	3
10.	Match the correct option about valence of elements and compounds of a molecule Difficulty: medium	6
11.	State of metals and non-metals Difficulty: medium	4
12.	Symbols of metals and non-metals Difficulty: medium	3
13.	Find the analogy about symbols and elements Difficulty: medium	3
14.	Atomicity of elements and compounds: match the correct options Difficulty: medium	7
15.	Compounds and its constituent atoms Difficulty: medium	3
16.	Introduction to atoms and elements: statement and word match Difficulty: medium	3
17.	Find the number of atoms II Difficulty: hard	4
18.	Think before you answer Difficulty: hard	4

1.

Training Test

Difficulty: medium

10

1.

Methodical recommendation

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