Atomicity of metals is taken as:

Important Questions on Atoms and Molecules

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9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 34

Atomic number of sodium is $11, {\mathrm{Na}}^{+}$ will have

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IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 35

Atomic number of chlorine is 17, ${\mathrm{Cl}}^{-}$ will have

HARD

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IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 36

Which of the following represents $0.5$ mole of water?
(i) $18$ g of water
(ii) $9$ g of ${\mathrm{H}}_2\mathrm{O}$
(iii) $6.022 \times {10}^{23}$ molecules of water
(iv)$3.011 \times {10}^{23}$ molecules of water

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IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 37

Which of the following will weigh the highest?

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IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 38

Which of the following will have maximum number of atoms

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IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 39

The correct statement about atoms is:

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IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 40

The number of atoms in ${{\mathrm{CO}}_3}^{2-}$ is