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Tritium, an isotope of hydrogen, or Helium-3 (which does not have a specific name).

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Tritium, an isotope of Hydrogen

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Q: What has an atomic mass of 3?
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What is the atomic mass for carbon?

The atomic mass of carbon is approximately 12.01 atomic mass units.


What atom has an atomic mass of 3?

The atom with an atomic mass of 3 is lithium. It has 3 protons and usually 3 neutrons in its nucleus, giving it an atomic mass of 3.


How many neutrons are in an isotope of lithium if it has an atomic mass of ten?

An isotope of lithium with an atomic mass of ten would have an atomic number of 3, meaning it has 3 protons. To find the number of neutrons, subtract the atomic number from the atomic mass: 10 (atomic mass) - 3 (atomic number) = 7 neutrons. Therefore, an isotope of lithium with an atomic mass of ten would have 7 neutrons.


What is the atomic mass of lithium?

The atomic mass of lithium is approximately 6.94 atomic mass units.


What is the mass of atoms of sulfur?

The Atomic Mass of one (1) atom of sulfur is 37.02. The atomic mass of three (3) atoms of sulfur is 96.21. 32.07 * 3 = 96.21


What element is a nonmetal in period 3 atomic mass 12?

No element in period 3 has an atomic mass of 12.


Is the atomic mass of hydrogen 3?

No, the atomic mass of hydrogen is approximately 1.008 atomic mass units, not 3. This value takes into account the average mass of all hydrogen isotopes found in nature.


What has a mass number of seven?

Lithium is an element with an atomic number of 3 and an atomic mass of 7.


What is lithium atomic mass?

Naturally occurring lithium contains two isotopes. The common one has an atomic mass of 7. About one per cent of the lithium has an atomic mass of 6.The atomic mass of Lithium-Li is 6.941 grams.


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.


Whiumat is the mass number for Uranium?

The atomic weight of uranium is 238,02891(3) atomic mass units.


What is the atomic mass number of Li?

The atomic number is 3.