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This case is impossible. Hydrogen will always have an atomic number of 1.

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Q: How is an isotope of hydrogen with atomic number 2 and mass number 4 written?
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Related questions

What is protiums atomic number?

Protium is an isotope of hydrogen, so the atomic number is 1.


What is the atomic number for deuterium?

Deuterium is just an isotope of hydrogen, so the atomic number is 1.


What is the atomic number number of nuetrons and the number of electrons of hydrogen?

Hydrogen atom: Atomic number: 1 Number of neutrons: 0 [for commonest isotope] Number of electrons: 1


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.


What is a form of a element that has the same atomic number but a different mass number?

It is an isotope, an example is hydrogen and deuterium.


What are the atomic number for the hydrogen isotope with 1 neutron?

Atomic number of hydrogen is (always) 1. The mass number is 2, sum of number of protons (1 in H) and neutrons (1 in H in this case). This isotope of hydrogen is called deuterium.By the way: neurons (without t) is a very different thing!


Does atomic weight is same with atomic number?

Atomic weight is not the same as atomic number for any element except hydrogen; this is the only element that has a radioactively stable isotope with no neutrons.


What are the number of protons in an every isotope?

There is no set number of protons in an isotope. The definition of an isotope is an atom that has the same number of protons but a different number of neutrons. Therefore, the answer to the question is; the number of protons in an isotope remain the same. To know the number of protons, look at the Periodic Table. The Atomic Number is the number of protons. Don't confuse that with Atomic Mass - To confirm, the Atomic Numbers for Hydrogen and Helium are 1 and 2.


The element has a mass number and atomic number of 1?

Hydrogen-1, the most abundant isotope of hydrogen, has a mass number of 1. It has one proton and no neutrons.


What element has a mass number and an atomic number of 1?

The element hydrogen and more specifically its isotope, protium or 1H1


Does atomic number equal atomic mass?

No. Atomic mass is the atomic number plus the number of neutrons. The only exception to this is the most common isotope of hydrogen, which has 1 proton and no neutrons, thus both the atomic mass and number are 1.


How can you dertermine the number of neutrons in a isotope?

Subtract the atomic number of the isotope from its atomic mass number to obtain the number of neutrons in an isotope.