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This is the isotope radium-226.

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An element's atomic mass number is?

It is about neutrons and protons. The total of neutrons and protons.


Which atom contains 94 protons and 150 neutrons?

Plutonium a very explosive element.


What are the elements that formed the calcium?

Calcium is an element, which means that it is made up protons/electrons and neutrons. Each calcium atom contains a total of 20 protons/electrons, and 20 neutrons.


How many potons and netrons are in an atom?

An atom contains protons, neutrons, and electrons. The number of protons determines the element and is equal to the atomic number. Neutrons have no charge and contribute to the atomic mass. The number of protons and neutrons together make up the atomic mass of the atom.


The mass number of an atom indicates the number of what?

The mass number is the sum of protons + neutrons.


What is an isotope of the element with 20 protons and 20 neutrons?

An isotope of the element with 20 protons and 20 neutrons is calcium-40. Calcium has an atomic number of 20, which means it has 20 protons. The total number of protons and neutrons in calcium-40 is 40 (20 protons + 20 neutrons).


The mass number of an element is equal to the total number of?

The mass number is the average atomic mass of all the isotopes that are found in nature.


How is the mass number related to the number of protons and neutrons and atoms has?

The mass number of an atom is the sum of its protons and neutrons. It represents the total number of nuclear particles (protons and neutrons) in the atom's nucleus. The number of protons in an atom determines its element, while the number of neutrons can vary to create different isotopes of the element.


An atoms mass number equals the combination of what two things?

The mass number of an element is equal to the sum of the elements neutrons and protons.


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total number of protons and neutrons in the nucleus.


What does the mass number tell about an isotope?

The mass number of an isotope tells you the total number of protons and neutrons in the nucleus of that atom. It is used to distinguish different isotopes of an element, as isotopes of the same element have the same number of protons but different numbers of neutrons.


What is the number of neutrons and protons in 52Fe?

Iron-59 has 26 protons and 26 neutrons.