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The atomic number is typically found directly above the atomic symbol of the element in the Periodic Table.

The atomic number, Z, should not be confused with the mass number, A, which is the total number of protons and neutrons in the nucleus of an atom. The number of neutrons, N, is known as the neutron number of the atom; thus, A = Z + N. Since protons and neutrons have approximately the same mass (and the mass of the electrons is negligible for many purposes), the Atomic Mass of an atom is roughly equal to A. Note that the atomic mass numberA of an atom, which is always an integer, is usually different from the atomic weight of a element, because (among other reasons) most elements consist of a mixture of stable atoms with the same Z ,but differing N (isotopes

This changes the formula from Z=n+A to Z=A-N. That is basic math with variables.

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13y ago
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8y ago

I usually find it by looking at the periodic table.

"Count the protons" is probably the answer you're looking for, though.

The experimental method is to measure the radiation emitted when an element is used as the anodic target in an X-ray tube.

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9y ago

The atomic number of an element can be found on most any Periodic Table of Elements. The atomic number is found in the upper left hand corner of the element's square. The number represents the number of protons one atom of the element has.

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12y ago

There are a couple of ways you can find the atomic number of an atom. Firstly, it is the order of elements, you can see this when referring to a Table of Elements. Secondly, the atomic number is equal to the number of protons in the atoms nucleus.

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11y ago

To find the atomic number of an element, look it up in the Periodic Table, in the front of most any chemistry text book, or in the entry for the element in the Wikipedia. The atomic number is equal to the number of protons in the nucleus of the element.

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Q: How do you find what is the atomic number of an element?
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What is atomic number and where can you find an element's atomic number?

The atomic number is the number of protons in the element. For example calcium has 20 protons, so that means it has an atomic number of 20. You can find the element's number on the periodic table; its usually the number on top of the element's symbol


What is the atomic number of atoms?

how do you find the atomic number for an element?


What is an atomic number and where can you find one listed?

the atomic number is the number of protons of an element. The atomic number specifically identifies an element. You can find it on the Periodic Table of Elements.


What is the atomic number of the element radon?

We can find radon as a non metal element. Atomic number of it is 86.


Where can you find the atomic number of tin?

We can find tin as a metal element. Atomic number of it is 50.


What element ha an atomic number of 127.6?

We can find tellurium as a non metal element. Atomic number of it is 52.


What is the atomic number of alement?

First of all, you spelled "element" wrong. And to find the Atomic Number of an element, you look at the number on the top of the element in the Periodic Table. For example, Hydrogen is 1, 1 is its atomic number. The atomic number is also the number of protons and electrons in an element.


How do you find the number of nucleons?

To find the number of neutrons in an atom, first find the atomic weight of the element and round that number to the nearest whole number. Then, find the atomic number of the element. Subtract that number from the atomic weight and the number of neutrons will be found.


How do you find out the atomic number of an element?

Atomic number is the no. of protons or no. of electrons in an atom .


How can you find atomic number from oxidation number?

Atomic number is not related to oxidation number. If you want to find the atomic number of a particular element, all you have to do is find it on the periodic table of elements.


What are characteristics of atomic number?

The atomic number of an element tells you how many protons there are in each nucleus of each atom of the element. On the periodic table, you find the atomic number at the top of the box for each element.


What are the characteristics of atomic number?

The atomic number of an element tells you how many protons there are in each nucleus of each atom of the element. On the periodic table, you find the atomic number at the top of the box for each element.