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Deuterium, it has 1 neutron and one proton.

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Which is the lightest isotope of hydrogen?

Protium (Hydrogen-1) is the lightest and by far the most common isotope of hydrogen.


What is a complete sentence for the word isotope?

Hydrogen atom have three isotope which is hydrogen , deuterium , and tritium.


Which is the most abundant isotope for hydrogen?

Tritium is the most abundant hydrogen isotope


What is protium?

Protium is the name of a common hydrogen isotope. This isotope has a single proton and does not have any neutrons.


What has an atomic mass of 3?

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


If a hydrogen has 2 neutrons is it an isotope?

The number of neutrons in hydrogen depends on the isotope. Protium,deuteriumand tritium have 0, 1 and 2 neutrons respectively.


How many electrons are in the second energy level of hydrogen?

Depends on the isotope can be 0 or 1 hydrogen is a highly unstable element that the electron Jumps betweent the two energy levels


True or false Tritium is an isotope of hydrogen with 2 neutron?

False. Tritium is an isotope of hydrogen with 2 neutrons.


Which atom has an average mass not equal to its common isotope?

Hydrogen atom has an average mass not equal to its common isotope. The most common isotope of hydrogen, hydrogen-1, does not have a neutron in its nucleus, while the average mass of a hydrogen atom accounts for the other isotopes of hydrogen which do contain neutrons.


How many particles in a hydrogen atom?

The most common isotope of hydrogen has one proton, and one electron.The most common isotope of hydrogen has one proton, and one electron.The most common isotope of hydrogen has one proton, and one electron.The most common isotope of hydrogen has one proton, and one electron.


What is the shorthand formula for the 3 isotopes of hydrogen?

each isotope of hydrogen has one proton in its nucleus. The most common hydrogen isotope has no neutrons. It's mass number is one so it would be (1/1H) the second would have one neutron and a mass number of 2 (2/2H) and the third (3/3H)


21H is a n_____of hydrogen?

21H is a radioactive isotope of hydrogen known as tritium. It has two neutrons in addition to the single proton found in regular hydrogen atoms.