By knowing the number of protons in a neutral atom, one can determine :

the identity of the element.

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the number of neutrons in the atom.

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the number of common isotopes of the element.

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the atomic radius size.

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Solution

The correct option is A the identity of the element.
$(A)$ the identity of the element.

In a neutral atom, the number of protons is always the atomic number of the element and uniquely identifies the element. and in this, the number of positive protons and negative electrons is always equal.

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Similar questions

The mass number of an atom is determined by the number of protons and neutrons. Calculate the mass number of a Sodium (Na) atom if the number of neutrons in it are 12.

Q. Isotopes are atoms with the same number of protons , but differing numbers of neutrons . Isotopes are different forms of a single element.

Q. An element is represented by

_{Z} X^{A}

, where Z is atomic number which is also equal to number of proton, A is mass number and X is symbol of the element.
Mass number (A) = Number of protons (Z) + Number of neutrons.
Isotopes: Atoms having same number of proton
Isobar: Elements having same mass number
Isotones: Elements having same number of neutron (A-Z)

The sum of the number of electrons, protons and neutrons in the three isotopes

(^{16} O,^{17} O,^{18} O)

of oxygen is:

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. Atomic number (Z) of a neutral atom and mass number (A) of an atom are equal to:

(Here n = number of neutrons and p = number of protons):

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By knowing the number of protons in a neutral atom, one can determine :

The correct option is A the identity of the element.(A) the identity of the element.In a neutral atom, the number of protons is always the atomic number of the element and uniquely identifies the element. and in this, the number of positive protons and negative electrons is always equal.

The correct option is A the identity of the element.
$(A)$ the identity of the element.

In a neutral atom, the number of protons is always the atomic number of the element and uniquely identifies the element. and in this, the number of positive protons and negative electrons is always equal.