Tag: elements and atoms

Questions Related to elements and atoms

What is the smallest constituent of matter that retains its chemical identity?

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. Atom

  2. Molecule

  3. Ion

  4. Radical

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Correct Option: A
Explanation:

Atom is the smallest unit of matter that still retains its chemical identity.Atoms can be broken down into electrons,neutrons and protons which can be further broken down into quarks.Atoms differ from each other with different chemical properties.

Nine planets revolve around the sun. The outer, distant planets are Jupiter, Saturn, Neptune, Uranus and Pluto. In comparison to these, the 'inner planets', Mercury, Venus, Earth and Mars that are nearer to the centre of the sun contain relatively:

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. New elements of matter

  2. Lighter elements

  3. Heavier elements of matter

  4. Larger quantities of gas

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Correct Option: C

As a balloon is filled with water,it expands and increases in weight,This shows that water:

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. Has mass

  2. Occupies space

  3. Is a kind of matter

  4. All of these

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Correct Option: D
Explanation:

The balloon expands shows that the water n the balloon is occupying the space and the increase in weight of the balloon proves that water has mass and Matter is anything that has mass and takes up space.

Matter can be defined as something that:

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. Occupies space

  2. Has mass

  3. Exists in three states

  4. All of the above

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Correct Option: D
Explanation:

Matter is defined as something  that which occupies space and possesses rest mass, especially as distinct from energy and exists in all the three states

The quantity of matter present in an object is called its ___________.

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. weight

  2. volume

  3. mass

  4. density

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Correct Option: C
Explanation:

Mass is the property of a physical body which determines the strength of its mutual gravitational attraction with other bodies. The unit of mass is kilogram.

 Matter is composed of:

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. atoms

  2. molecules

  3. tiny particles

  4. all of the above

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Correct Option: D
Explanation:

Matter is anything which have mass and occupy space. Substance and Mixture is the main part of the matter. Substance is the further classified in elements and compound, which is further categorized as atom and molecule. 

Hence, matter is composed of everything atoms, molecules, tiny particles etc.

Matter is defined as anything that ____________.

evs look, learn and experience brief introduction to atoms of elements elements and atoms introduction of atom

  1. occupies space and has mass

  2. has mass only

  3. occupies space only

  4. none of the above

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Correct Option: A
Explanation:

Matter is a substance that has a mass and occupy space. Example: sofa, TV, water, air, etc.


Option A is correct.