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Byju's Answer

Standard VIII

Chemistry

Electrons

The mass numb...

Question

The mass number is the sum of number of protons and neutrons present in the nucleus of an atom.

True

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False

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Solution

The correct option is A True

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Similar questions

Give one word answer for the following:

The total number of protons and neutrons present in the nucleus of an atom.

Multiple Choice Questions

(a) The outermost shell of an atom is known as

(i) valency

(ii) valence electrons

(iii) nucleus

(iv) valence shell

(b) The number of valence electrons present in magnesium is

(i) two

(ii) three

(iii) four

(iv) five

(i) proton

(ii) neutron

(iii) electron

(iv) nucleon

(d) If the atomic number of an atom is 17 and mass number is 35 then number of neutrons will be

(i) 35

(ii) 17

(iii) 18

(iv) 52

(e) The number of electrons in an atom is equal to the number of

(i) protons in a neutral atom

(ii) neutrons in a neutral atom

(iii) nucleons in a neutral atom

(iv) none of the above

(f) The sum of number of protons and number of neutrons present in the nucleus of an atom is called its

(i) mass number

(ii) atomic number

(iii) number of electrons

(iv) all of the above

What is mass number of an element? How is the mass number related to the protons and neutrons present in the nucleus of an atom?

Sulphur has an atomic number 16 and mass number 32,state the number of protons and neutrons present in the nucleus of sulphur.

What is mass number of an element ? How is the mass number related to the protons and neutrons present in the nucleus of an atom ? Is it same as atomic number ?

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