Elements are made up of______ kinds of atoms.

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Elements are made up of same kinds of atoms.

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Chapter 3: Matter Around Us - Evaluation [Page 38]

Chapter 3 Matter Around Us
Evaluation | Q II. 4. | Page 38

Correct the following statement:

CO and Co both represents cobalt.

State four differences between compounds and mixtures.

Write the Chemical Name of the Following and Also Give Their Molecular Formulae:

Marble

Give two examples of Non-metals.

Find the atomicity of the Following molecule:
Calcium Chloride

Tick (√) the correct alternative from the choice given for the following statement

A non-metal which is a good conductor of electricity.

State what are radicals. Give the names of the radicals –

(a) NO₃
(b) OH
(c) SO₄
(d) CO₃

Select the correct answer to the statement given below:

A compound containing carbon, oxygen and calcium.

Give two example of elements.

Give an account of elements known to us.