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The atomic number always gives the number of protons or electrons.

The neutrons are obtained by subtracting the number of protons from the Atomic Mass.

In this example, since 45 is the atomic number, this element has 45 protons. since the mass is 92, the number of neutrons is 92-45= 47.

However, this is not really true because the element with 45 as atomic number is rhodium and it has a mass of 103 u and hence a total of 58 neutrons.

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Q: If an element has an atomic number of 45 and an atomic mass of 92 the number of protons it has is?
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Related questions

How are the atomic mass and the atomic number different?

the atomic mass is the number of protons and neutrons in an atom of an element and the atomic number is the number of protons of an atom of an element.


What is the atomic mass the same as?

The Atomic Mass is equal to the number of protons and electrons that an element has.


How are atomic mass and atomic number different?

Atomic number is the number of protons in the nuclei of the atoms of an element. Atomic number is unique to each element. Atomic Mass is the combined mass of the protons, neutrons, and electrons in an atom of an element.


What is The atomic mass of an element is equal to?

The number of protons, electrons, and neutrons:P


Distinguish between the atomic number and mass number of an element?

The atomic number of an element is the number of protons in the nucleus of each atom of the element. Mass number is a property of a particular isotope of the element rather than of the element itself: The mass number is the sum of the numbers of protons and neutrons in the nucleus of each atom of the isotope.


What is the difference between the atomic number and atomic mass?

The atomic number is the number of protons in an atom of an element, while the atomic mass is the mass of protons and neutrons of a specific isotope of a given element.


What is the difference between the atomic number and the atomic mass?

Atomic mass is the mass of 1 mole of the element. Atomic number is the number of protons the element has


What are the atomic number and atomic mass number of?

The atomic number of an element is the number of protons in the nuclei of its atoms. Mass number is the sum of protons and neutrons in the atomic nucleus of a particular isotope of an element.


How do you determine the number of protons electrons and neutrons present in an element by identifying its atomic and mass numbers from the periodic table?

Atomic number means number of protons present in an atom. Atomic number= number of protons. mass number = number of neutrons+ number of protons. So if you subtract the number of protons you get neutrons and if you subtract neutrons you get protons. mass number - protons= neutrons Mass number - neutrons = protons.


How do you calculate the number of neutrons an atom of a specific element has?

First, find its atomic mass on the periodic table and subtract the number of protons (element number) from it and there you go


How are atomic number and atomic mass alike?

Atomic number and atomic mass are not alike. Atomic number is the number of protons in the nuclei of the atoms of an element. Each element has a unique atomic number. Atomic mass is the combined masses of the protons, neutrons, and electrons of the atoms of an element. Individual isotopes of an element have specific mass numbers, which are the sum of the protons and neutrons in the nuclei of the atoms of the isotope.


What is the difference between the mass number and the atomic number of an element?

The difference between the atomic number and the mass number is that the atomic number is the number of protons in the nucleus of an atom of that element. The mass number is the total number of protons and neutrons in the atom.Atomic number = number of protonsMass number = total number of protons + neutrons