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How do you find how many protons electrons and neutrons are in an atom?
Wiki User
∙ 10y ago
The amount of protons is the same as the Atomic Number of the atom. Also the same goes for the amount of electrons. The number of neutrons in an atom would be the Atomic Mass minus the number of protons, neutrons, or atomic number. (it doesn't matter which of the three you use because they are all the same number)
For example Titanium has an atomic number of 22, protons 22, and electrons 22. The atomic mass is 47, so to find the amount of neutrons you would take the atomic mass (47) minus the atomic number, protons, or electrons (22).
So this would be your equation... Atomic mass - electrons (or whichever you choose) equals number of neutrons. So-> 47-22=25 neutrons.
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoLook up a Periodic Table. Pick an element. The smaller number on that element is the atomic number. This represents the amount of protons and electrons (each) in the element. The larger number is mass number. This is protons and neutrons. Take the larger from the smaller number to get the amount of neutrons.
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What particles make up the mass of an atom?
The number of protons
How do you find the mass number given the proton electrons and atomic number but not the neutrons?
The mass number of an atom is the number of protons plus the number of neutrons. This is is the same as the number of electrons plus the number of neutrons since the number of protons is the same as the number of electrons in an atom.
An atom of nitrogen has seven protons in its nucleus. How many electrons does it have?
Assuming that the atom has no charge, the atom will have seven electrons. If the atom is positive, you subtract the charge from the atomic number to find the number of electrons. If the atom is negative, you add the charge to the atomic number to find the number of electrons.
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 many protons and electrons does a calcium atom have?
Calcium has 20 protons, 20 electrons and 20 neutrons in its most commonly found isotope.
How do you find the number of electrons in an atom if you know the number of protons and neutrons?
In a neutral atom, the number of electrons is equal to the number of protons of the nucleus.
What particles make up the mass of an atom?
The number of protons
Do you have to add the protons and electrons in order to find the atomic mass of an atom?
no, you add the protons and neutrons
How do you find an atomic mass?
It is nothing but the total no of protons and electrons .So it is found by summing the total no protons and electrons present in an atom It is not electrons but the total of neutrons and protons present in the nucleus of any atom.
How do you find the mass number given the proton electrons and atomic number but not the neutrons?
The mass number of an atom is the number of protons plus the number of neutrons. This is is the same as the number of electrons plus the number of neutrons since the number of protons is the same as the number of electrons in an atom.
An atom of nitrogen has seven protons in its nucleus. How many electrons does it have?
Assuming that the atom has no charge, the atom will have seven electrons. If the atom is positive, you subtract the charge from the atomic number to find the number of electrons. If the atom is negative, you add the charge to the atomic number to find the number of electrons.
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 many protons does an atom have with a mass number of 43 and 21 electrons?
The atomic no. in this case 22, is equal to the no of protons and also electrons. So it has 22 protons and 22 electrons. The mass no. is equal to the no. of protons plus the no. of neutrons. So it has 22 protons and 26 neutrons. The metal with atomic no. 22 on the periodic table is titanium.
How many protons and electrons does a calcium atom have?
Calcium has 20 protons, 20 electrons and 20 neutrons in its most commonly found isotope.
The center of an antom?
The center of an atom is the nucleus. Inside an atom you will find neutrons, electrons and protons. The nucleus is the most important part of an atom.
How do you find the mass of electrons?
Nuclear Physicists don't really count electrons to have weight. An atom's mass comes from protons and neutrons.
A neutral atom always has what?
Atoms are mostly empty space. They do have a nucleus. This contains subatomic particles. Protons. neutrons, and electrons are all subatomic particles. Protons carry a positive charge. Neutrons carry a neutral charge Electrons carry a negative charge. You may want to see the Bhor/plum-pudding model for more information.
