Which parameter of an element can be used for its identification?

Number of electrons

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Mass number

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Number of neutrons

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Atomic number

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Solution

The correct option is D
Atomic number

Elements are defined by the number of protons they possess.

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Similar questions

Q. Which of the following are true for an element?
(i) Atomic number = number of protons + number of electrons
(ii) Mass number = number of protons + number of neutrons
(iii) Atomic mass = number of protons = number of neutrons
(iv) Atomic number = number of protons = number of electrons

Q. The number of electrons and neutrons of an element is

18

and

20

respectively. its mass number is :

An element ‘X’ has mass number = 27. If the number of electrons is given as 13, the number of neutrons will be _____.

Which of the following statements is/ are correct about neutral elements?

(i) Atomic number = number of protons = number of electrons
(ii) Mass number = number of protons + number of neutrons
(iii) Atomic number = number of protons + number of electrons
(iv) Mass number = number of neutrons = number of electrons

Q. The number of electrons in an element

X

is 15 and the number of neutrons is 16. The element can be represented as :

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Which parameter of an element can be used for its identification?

The correct option is D Atomic number Elements are defined by the number of protons they possess.

The correct option is D
Atomic number

Elements are defined by the number of protons they possess.