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The mass number is the sum of protons and neutrons.

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Why atomic mass is always greater than atomic number?

Atomic mass includes the total mass of protons, neutrons, and electrons in an atom. Since protons and neutrons contribute significantly to the mass of an atom, atomic mass is generally greater than atomic number, which represents the number of protons in the nucleus. Electrons have a much smaller mass compared to protons and neutrons, so they have less impact on the overall atomic mass.


What Make up 50 percent of the atomic mass of the nucleus?

Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.


Why atomic mass is different from the mass numbers?

atomic mass is the number of protons in an atom mass number is the number of protons plus neutrons in an atom


Do both isotopes have the same mass number?

An Isotope of an element is an atom that has the same number of protons, (number of protons is the defining feature of an element) but different number of neutrons.Because The mass number is the sum of protons and neutrons, different isotopes have different mass numbers.


Why actual atomic mass is greater than mass number?

Mass number = number of protons + number of neutrons in an atom

Related Questions

What has the smaller mass protons electrons or nutrons?

Electrons have the smallest mass compared to protons and neutrons. The mass of a proton is approximately 1836 times greater than the mass of an electron, and the mass of a neutron is slightly greater than that of a proton.


Why atomic mass is always greater than atomic number?

Atomic mass includes the total mass of protons, neutrons, and electrons in an atom. Since protons and neutrons contribute significantly to the mass of an atom, atomic mass is generally greater than atomic number, which represents the number of protons in the nucleus. Electrons have a much smaller mass compared to protons and neutrons, so they have less impact on the overall atomic mass.


What is bigger the atomic mass or atomic number?

Atomic no.=no. of protons Atomic mass=no. of protons+no. of neutrons Hence, atomic mass is greater


What is bigger atomic mass or atomic number?

Atomic no.=no. of protons Atomic Mass=no. of protons+no. of neutrons Hence, atomic mass is greater


What Make up 50 percent of the atomic mass of the nucleus?

Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.


Why atomic mass is different from the mass numbers?

atomic mass is the number of protons in an atom mass number is the number of protons plus neutrons in an atom


What is found with the neutrons and have a greater mass than electrons?

protons


In what way do these atoms corresponds and in what way do they differin terms of their mass numbers?

Atoms correspond in that they are all made up of protons, neutrons, and electrons. However, they differ in their mass numbers, which is the sum of protons and neutrons. Atoms of different elements have different mass numbers due to varying numbers of protons and neutrons.


Do protons electons and neutrons differ in mass?

As I remember neutrons and protons weight something similar, electrons have a far smaller mass which is negligable in comparison to the weight of protons.


The number of an element determines its?

it depends which number you are referring to. in the periodic table, the numbers referr to number of protons and then relative atomic mass. the larger number is relative atomic mass and the smaller number is the number of protons for example, chlorine, has a relative atomic mass of 35.5 and a proton number of 17


Do both isotopes have the same mass number?

An Isotope of an element is an atom that has the same number of protons, (number of protons is the defining feature of an element) but different number of neutrons.Because The mass number is the sum of protons and neutrons, different isotopes have different mass numbers.


What is the mass of an atom mainly determined by?

The sum of masses of protons, neutrons and electrons.