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Atomic Structure

Question 17Wh...

Question

Question 17
Which of the following statement is always correct?

(a) An atom has equal number of electrons and protons
(b) An atom has equal number of electrons and neutrons
(c) An atom has equal number of protons and neutrons
(d) An atom has equal number of electrons, protons and neutrons

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Solution

The answer is (a).
Atom is electrically neutral. It is possible only if an atom has equal number of protons and electrons.

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Similar questions

Q. Question 17
Which of the following statement is always correct?

(a) An atom has equal number of electrons and protons
(b) An atom has equal number of electrons and neutrons
(c) An atom has equal number of protons and neutrons
(d) An atom has equal number of electrons, protons and neutrons

Q. Which of the following statement is always correct?

(a) an atom has equal number of electrons and protons

(b) an atom has equal number of electrons and neutrons

(c) an atom has equal number of protons and neutrons

(d) an atom has equal number of electrons, protons and neutrons

Which of the following statement is correct about the atom of an element ?

(a) an atom can have only protons and neutrons but no electrons.

(b) an atom can have only electrons and neutrons but no protons

(c) an atom can have only electron and proton but no neutron

(d) an atom must always have a proton, neutron and electron

Q. An atom X has a mass number of 35 and contains 17 electrons. Find the number of protons, electrons, and neutrons, along with the atomic number of the ion X

^{-}

.

Q. An atom has mass number

23

and atomic number

11

. How many protons, electrons and neutrons are present in the atom?

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Atomic Structure

Standard IX Physics

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