answersLogoWhite

0


Best Answer

Hydrogen is a non metal element. Mass number of it is1.

User Avatar

Wiki User

9y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

9y ago

Hydrogen is a non metal element. Atomic Mass of it is 1.0079.

This answer is:
User Avatar

User Avatar

Wiki User

15y ago

1.

This answer is:
User Avatar

User Avatar

Wiki User

12y ago

1.0079

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the mass number in hydrogen?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Earth Science

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

A hydrogen atom has one proton, one electron and '''zero''' neutrons. Rephrased, the question is: Hydrogen's number of neutrons equals mass number - atomic number.


What is the mass number of hydrogen -1?

The atomic mass of hydrogen is 1.00794 Grams per mol. This is the relative atomic mass because it is a weighted average of all hydrogen isotopes. The relative atomic mass of hydrogen is about 1 because the most common isotope contains only one proton and one electron giving it a mass of roughly one gram per mol. This isotope is the most abundant by far comprising 99.985 percent of all hydrogen. Since then other isotopes(hydrogen-2 and hydrogen-3) make up such a small part of the weighted average it offsets the relative atomic mass of 1 by very little.


Is the mass of a hydrogen atom different from the mass of an oxygen atom?

all atoms have different masses Mass of an atom is due to protons and neutrons present in an atom and number of proton is something that distinguish between atoms, therefore mass of hydrogen is different to the mass number of oxygen, hydrogen's mass is 1 as it has only 1 proton and no neutrons, and oxygen mass's is 16 as it has 8 protons and 8 neutrons.


What is the mass number of the hydrogen isotope that contain 2 neutrons?

All hydrogen atoms contain 1 proton each. The mass number of an isotope is defined as the sum of the numbers of protons and neutrons [note correct spelling] in a nucleus of an atom of the isotope. Therefore, hydrogen with 2 neutrons has a mass number of (1 + 2) or 3.


Is the mass number of an atom equal to the atomic number?

Only if the atom is hydrogen-1! The mass number of the atom is equal to the sum of the numbers of protons, which is the same as the atomic number, plus the number of neutrons. The only non-radioactive atom without neutrons is hydrogen-1.