Atomic Models

IMPORTANT

Atomic Models: Overview

This Topic covers sub-topics such as Atom, Dalton's Atomic Theory, Thomson's Atomic Model, Law of Multiple Proportions, Atomic Models, Size of Atom, Law of Definite Proportions, Drawbacks of Rutherford's Atomic Model and, Failure of Dalton's Atomic Theory

Important Questions on Atomic Models

EASY

IMPORTANT

chemistry>Atomic Structure>Atomic Models> Q 1

Select the correct statements from the following :

A. Atoms of all elements are composed of two fundamental particles.
B. The mass of the electron is $9.10939 \times 10^{- 31} kg$ .
C. All the isotopes of a given element show same chemical properties.
D. Protons and electrons are collectively known as nucleons.
E. Dalton's atomic theory, regarded the atom as an ultimate particle of matter.

Choose the correct answer from the options given below:

EASY

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chemistry>Atomic Structure>Atomic Models> Q 2

The statement related to law of definite proportions is

EASY

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chemistry>Atomic Structure>Atomic Models> Q 3

Among the following pairs of compounds, the one that does not illustrate the law of multiple proportions, is

HARD

IMPORTANT

chemistry>Atomic Structure>Atomic Models> Q 4

Two elements $X$ (of mass $16$ ) and $Y$ (of mass $14$ ) combine to form compounds $A, B$ and $C$ . The ratio of different masses of $Y$ which combine with a fixed mass of $X$ in $A, B$ and $C$ is $1 : 3 : 5$ , if $32$ parts by mass of $X$ combines with $84$ parts by mass of $Y$ in $B$ , then in $C, 16$ parts by mass of $X$ will combine with;

EASY

IMPORTANT

chemistry>Atomic Structure>Atomic Models> Q 5

4.4 g of an oxide of nitrogen gives 2.24 L of nitrogen. 60 g of another oxide of nitrogen gives 22.4 L of nitrogen at STP. This data illustrates the law of:

MEDIUM

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chemistry>Atomic Structure>Atomic Models> Q 6

Explain John Dalton's colour blindness.

MEDIUM

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chemistry>Atomic Structure>Atomic Models> Q 7

How did Dalton discover colour blindness?

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chemistry>Atomic Structure>Atomic Models> Q 8

List the limitations of Thomson's atomic model.