answersLogoWhite

0

It's an average number allowing for the relative abundances of different isotopes.

User Avatar

Wiki User

9y ago

What else can I help you with?

Related Questions

What is the mass of boron-11?

The mass of boron-11 is approximately 11 atomic mass units (amu).


An atom has 11 protons and 12 neutrons Its atomic mass is?

The atomic mass of an atom with 11 protons and 12 neutrons is calculated by adding the number of protons and neutrons together. In this case, the atomic mass would be 11 (protons) + 12 (neutrons) = 23 atomic mass units.


How many neutron in sodium element?

Subtract the atomic # from the atomic mass. Atomic number = number of Protons. Atomic mass = total nucleons (Protons + Neutrons).Atomic # = 11 and Atomic Mass = 23. So 23-11 = 12 Neutrons.


What is the atomic mass of boron?

The atomic mass of boron is approximately 10.81 atomic mass units.


The average atomic mass of boron is 10.81 amu. Based on the atomic mass of B-10 and the relative abundances of the boron isotopes what is the atomic mass of B-11?

The atomic mass of boron-11 (B-11) can be calculated by setting up an equation based on the given average atomic mass of boron and the known atomic mass and abundance of boron-10 (B-10). Since the average atomic mass is a weighted average of the isotopes, the equation would be: (mass of B-10 * % abundance of B-10) + (mass of B-11 * % abundance of B-11) = average atomic mass of boron. Solving this equation will give you the atomic mass of B-11.


What is the atomic mass of neon'?

The approximate mass is 11. Technically you could express this in units of daltons as 11 Da (Daltons previously called amu, Atomic Mass unit, or as 11 (the dimensionless, relative atomic mass which chemists simply call atomic weight) .


What is the atomic number and atomic mass of Sodium?

The atomic number of Sodium is 11, which means it has 11 protons in its nucleus. The atomic mass of Sodium is approximately 23 amu (atomic mass units), which is the weighted average of all the isotopes of Sodium found in nature.


What is the atomic mass of an isotopes that has an atomic number of 5 and includes 6 neutrons?

Atomic Mass = 11 amu


What is the explanation of the atomic mass of Sodium?

Sodium is a meta element. Atomic mass of it is 23. Atomic number of it is 11.


Sodium atomic mass?

11


What is the approximate mass of a neon-11 atom?

The approximate mass is 11. Technically you could express this in units of daltons as 11 Da (Daltons previously called amu, atomic mass unit, or as 11 (the dimensionless, relative atomic mass which chemists simply call atomic weight) .


What is the atomic mass number of an isotope that has an atomic number of 5 and includes 6 neutrons?

The atomic mass number is calculated by adding the number of protons and neutrons in the nucleus. In this case, the isotope with atomic number 5 and 6 neutrons would have an atomic mass number of 11 (5 protons + 6 neutrons = 11 atomic mass number).