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Each isotope of each element has an Atomic Mass number. The atomic mass numbers for hydrogen are 1, 2 and 3. That's because hydrogen has three isotopes. "Regular" hydrogen has a single proton in its nucleus. It's atomic mass is 1. There is also heavy hydrogen, which has a neutron bound to the proton in its nucleus. It's atomic mass is 2. Heavy heavy hydrogen has two neutrons bound together with the proton. It's atomic mass is 3. A link is provided to the Wikipedia article on hydrogen.

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16y ago
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5mo ago

The atomic number for hydrogen is 1, which means it has 1 proton in its nucleus. The atomic mass of hydrogen is approximately 1.008 atomic mass units.

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10y ago

Hydrogen is a non metal element. Mass number of it is 1.

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10y ago

Hydrogen is a non meta element. Atomic mass of it is 2. Atomic number of it is 1.

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Q: What is the atomic number and atomic mass for hydrogen?
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Related questions

What is hydrogen's atomic mass number?

Hydrogen is a gas. Mass number of it is 2.


What is the mass number for hydrogen?

the relative atomic mass for hydrogen is 1.0079 amu.


What is hydrogen's number of neutrons equals mass number - atomic number equals?

The number of neutrons in an atom can be calculated by subtracting the atomic number (number of protons) from the mass number. For hydrogen, the atomic number is 1 and the mass number is also 1. Therefore, the number of neutrons in hydrogen is 1 (mass number - atomic number = 1 - 1 = 0 neutrons).


What are the atomic number and mass number for hydrogen?

Hydrogen is a non metal element. Mass number of it is 1.


Hydrogens atomic mass number and relative atomic mass?

Hydrogen is a non metal element. Atomic mass number of it is 12.


What is the atomic number the atomic mass and the number of neutrons of the element hydrogen?

The atomic number of hydrogen is 1, the atomic mass is approximately 1.008 u, and the number of neutrons can be calculated by subtracting the atomic number (1) from the atomic mass, which gives approximately 0.007 u.


What is the mass and atomic number of hydrogen-3?

Hydrogen is a non metal element. Atomic number of it is 1.


Is hydrogens atomic number 1.008?

No, the atomic number of hydrogen is 1. The atomic weight of hydrogen is approximately 1.008 atomic mass units.


What is the atomic number and mass number of deuterium 2H?

The atomic number of deuterium (2H) is 1, as it has one proton in its nucleus. The mass number of deuterium is 2, which is the sum of the protons and neutrons in its nucleus (1 proton + 1 neutron = mass number of 2).


What element has the atomic mass and atomic number one?

Hydrogen


What is the atomic mass number of hydrogen -3?

The atomic mass number of hydrogen-3 is 3. It is also known as tritium, and it consists of one proton and two neutrons.


The mass number of an atom can be equal to the atomic number.?

Yes but only if there are no neutrons, such as in hydrogen (atomic number=1, relative Atomic Mass-1)