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Protons and ElectronsThe number of protons in an element is always the same as the atomic number, which is just 1 in this case. In a neutral atom (no charge), the number of electrons equals the number of protons, so it will be 1 electron also. Sometimes an ion of hydrogen (having lost an electron) is just called a "proton" since that's all it is (usually no neutron either). NeutronsHowever, the number of neutrons depends which isotope (atoms of the same element with different numbers of neutrons) of hydrogen we consider. Not all hydrogen atoms have the same number of neutrons. The vast majority of hydrogen atoms (over 99.98%) have no neutrons at all. Some have 1 (and this is called deuterium) and some have 2 (called tritium). These two isotopes occur naturally but are found in minute quantities.

To determine the number of neutrons in an atom, you must use the mass number, which is the sum of the number of protons and the number of neutrons. Since the atomic number of the element (for H, the atomic number is 1) tells you the number of protons, you can find the number neutrons by subtracting 1 from the mass number.

See link below for more information on Hydrogen, as well as the related question below that will show you how to find the number of each subatomic particle in any atom.

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Related Questions

How many protons neutrons and electrons does an element have?

An element must always have the same number of protons as it's atomic number. The number of electrons may vary, making an atom into an ion, and the number of neutrons can also vary which is why we have different isotopes of the same element.


How many protons neutrons and electrons are there in a molecule of water?

The number of neutrons will vary depending on the isotopes of hydrogen and oxygen in the molecule. The number of protons and electrons will be 10 each in every molecule.


What are the number of protons neutrons and electrons in an element?

Number of protons = Number of electrons = Atomic number Number of neutrons = Atomic number - Number of protons


What does the atom of?

An atom has a nucleus composed of protons and usually neutrons as well (there is only one kind of atom which has no neutrons, which is the hydrogen 1 isotope) and it also has electrons surrounding the nucleus, with the same number of electrons as the number of protons in the neutrons.


Do electrons equal the sum of the number of neutrons and protons in an isotope?

No. The number of neutrons has no affect on the number of protons and electrons.


What is the number of neutrons electrons and protons in nitrogen14?

there are 7 neutrons, 7 protons, and....----electrons


How many protons electrons and neutrons does americium have?

Americium has 95 protons and electrons. Number of neutrons: atomic mass of an isotope - number of protons


What is the number of protons neutrons and electrons of carbon 12?

Carbon-12 has 6 protons, 6 neutrons, and 6 electrons. The number of protons determines the element (carbon), the number of neutrons plus protons gives the mass number (12), and in a neutral atom, the number of electrons equals the number of protons.


What are the number of protons neutrons and electrons in boron?

Boron has 5 electrons and protons; the number of neutrons is specific for each isotope. Number of neutrons in a boron isotope = Mass number - 5


How many electrons protons and neutrons are in uranium?

Uranium isotopes have 92 protons and electrons; the number of neutrons is different for each isotope.Number of neutrons = Mass number - Number of protons


What is neons number of protons electrons neutrons?

Protons: 10 Electrons:10 and Neutrons: 10.


LList the number of protons electrons and neutrons in americium?

Americium has 95 protons and electrons. Number of neutrons: atomic mass of an isotope - number of protons.