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All you need is a Periodic Table. The atomic number of an element is the number of protons in the nuclei of all of the atoms of that element. So just look for the element on the periodic table, and its atomic number is the number of protons. However, if you don't have a periodic table available, and you've been given mass number, number of neutrons, and/or the number of electrons, you can calculate the number of protons by doing the following:
mass number - no. of neutrons = no. of protons
no. of electrons in a neutral atom = no. of protons
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoThe number of protons in an atom is the "atomic number" on the periodic table. For example, H has 1 proton, He has 2 protons, Li has 3 protons, Be has 4 protons, B has 5 protons, C has 6 protons, N has 7 protons, O has 8 protons, F has 9 protons, Ne has 10 protons, etc.
Wiki User
∙ 14y ago
The number of protons is equal to the number of electrons and the atomic number.
Wiki User
∙ 13y agoThe amount of protons is the atomic number. It can also be found by taking the amount of neutrons from the Atomic Mass.
Wiki User
∙ 13y agoThe number of protons is the same as the atomic number and number of electrons.
Wiki User
∙ 14y agoYou count them by using a radiomicroscope, or look it up on the periotic table of elements.
Wiki User
∙ 12y agoit is the atomic number of the element. you can find the ATOMIC NUMBER by looking usually in the top right corner of each element box on the periodic tabel
Wiki User
∙ 11y agoFor any chemical element the number of protons is equivalent to the atomic number.
Wiki User
∙ 12y agoNumber of protons is the atomic number.
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How do you find the ratio of neutrons to protons?
You find the number of neutrons, N You find the number of protons, P Then the ratio is N:P.
What can you find from the atomic number?
The number of protons in an atom.
How do you figure out protons electrons neutrons?
Find the atomic number. That tells you the number of protons and electrons (in a neutral atom). Then find the atomic weight. The number of protons plus the number of neutrons will equal the atomic weight. So if you know the wt. just subtract the number of protons and you will have the number of neutrons.
How do you find the number of nutrons in an atom?
Find out how many protons (atomic number) and what the mass number of a particular element is. Then subtract the number of protons from the rounded mass number to get the number of neutrons in a particular atom.
How can you use the periodic table to find the number protons in one atom of an element?
Atomic number is equal to number of protons.
How can you find the number of protons?
The number of protons is the atomic number.
How do find the number of protons?
The number of protons is equal to the number of electrons and the atomic number.
How do you find the number of protons in a neon atom?
The number of protons is equal to atomic number: neon 10 has protons.
How do you find the ratio of neutrons to protons?
You find the number of neutrons, N You find the number of protons, P Then the ratio is N:P.
How do you find the number of protons electrons of an element?
The atomic number of the element is the number of protons, therefore there has to be the same amount of electrons to protons.
How do you find protons in the periodic table?
# protons = atomic number.
How did you find out protons are in the nucleus?
The number of protons in the atomic nucleus is equal to atomic number.
How do you find the number of protons in an elements nucleus?
The number of protons in an elements nucleus is the same number at the atomic number.
What can you find from the atomic number?
The number of protons in an atom.
What can you find with the atomic number and mass number?
atomic number is the number of protons in the atom. mass number is protons and neutrons combined.
What is the number of protons in the nucleus of xenon?
There are 54 protons in the nucleus of xenon. You can find the number of protons of any element on the periodic table by noting the atomic number of the element. The atomic number is the same as the number of protons.
How do you find the number of electrons for an element?
It is the same as the number of protons if it is a neutral atom, or the number of protons plus the charge of the ion. The number of protons is the atomic number of the element.
