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The difference between the mass number and the atomic number of an atom tells you how many neutrons the atom contains. For example, Plutonium 239 is element number 93. If you take away 93 from 239 you have 146 left. That tells you that Plutonium 239 has 146 neutrons. That fact creates nuclear explosions!

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How the atomic number related to the core electrons?

The atomic number represents the number of protons in an atom's nucleus, which is also equal to the number of electrons in a neutral atom. Core electrons are those that are closest to the nucleus and are not involved in chemical bonding. The number of core electrons in an atom is equal to the difference between the atomic number and the number of valence electrons.


How can the number of protons electrons and neutrons be calculated when giving the mass number?

The atomic number must be known along with the mass number. Then the number of protons or electrons is the same as the atomic number, and the number of neutrons is the difference between the mass number and the atomic number.


What is the relationship between the number of protons and the atomic number?

atomic number(Z) = no. of protons Detailed: The number of protons in a neutral atom is equal to the number of electrons in the same atom. And the number of electrons in an atom is equal to its atomic number.


Which particles account for the difference between the atomic number and the mass number?

The answer is that it is neutrons that account for the difference between atomic weight and atomic number. The atomic number is the number of protons or the number of electrons in the atom, since they are normally equal. The atomic weightis the sum of the total number of protons, electrons AND neutrons in the atom. Knowing both the atomic number and the atomic weight of an atom lets you know the number of neutrons in the atom (the isotope). Example: Uranium, Atomic Number 92, Atomic Weight 235. The atomic number tell you that the uranium atom has 92 protons and 92 electrons. The atomic weight tells you that it has a combined total of 235 protons, electrons and neutrons. Since you know from the atomic number that there is a total of 184 protons and electrons in the atom (92 + 92) and from the atomic weight that the total number of protons, electons and neutrons is 235 (92 + 92 + X = 235), you now know that there are 151 neutrons in that uranium atom. The atomic number and atomic weight together tell you that the uranium atom 235 has 92 protons, 92 electons and 151 neutrons.


What is equal to the number of protons in an element?

The atomic number in an element is equal to the number of protons in an element. For example, Hydrogen has an atomic number of 1 and 1 proton.

Related Questions

What best describes the number of neutrons in an atom?

It is equal to the difference between atomic number and Atomic Mass number. A+


What is the number of neutron is equal to?

The number of neutrons of an isotope is the difference between the mass number of the isotope and the number of protons (equal to atomic number).


Is the difference between the mass number of an isotope and its atomic number is equal to the number of nucleons in the nucleus?

Yes, the difference between the mass number and the atomic number of an isotope equals the number of neutrons in the nucleus, which are also known as nucleons. This relationship helps to identify the number of neutrons in an isotope based on its atomic and mass numbers.


What atomic particle is equal to its atomic number?

The number of protons is equal to the atomic number of an atom


What is the relationship between the atomic number and the electrons in neutral atom?

In a neutral atom the number of protons is equal to the number of electrons. And by definition the atomic number of an atom is equal to the number of protons in it. So the atomic number of a neutral atom is equal to the number of protons or the number of electrons in the atom.


What number represents the difference between two equal fractions?

There is no difference in value between "equal" fractions: the difference is zero.


What you the relationship between the number of protons and the atomic number of an atom?

The number of protons is the atomic number.


What is the atomic number also equal to?

The atomic number is equal to the protons and electrons of an element.


How the atomic number related to the core electrons?

The atomic number represents the number of protons in an atom's nucleus, which is also equal to the number of electrons in a neutral atom. Core electrons are those that are closest to the nucleus and are not involved in chemical bonding. The number of core electrons in an atom is equal to the difference between the atomic number and the number of valence electrons.


How can the number of protons electrons and neutrons be calculated when giving the mass number?

The atomic number must be known along with the mass number. Then the number of protons or electrons is the same as the atomic number, and the number of neutrons is the difference between the mass number and the atomic number.


Translate the difference between twice a number and four time the sum of the number and seven is equal to two?

The difference between a number x and twice y is equal to fifteen.


What is the relationship between the number of protons and the atomic number?

atomic number(Z) = no. of protons Detailed: The number of protons in a neutral atom is equal to the number of electrons in the same atom. And the number of electrons in an atom is equal to its atomic number.