Keyword Analysis & Research: what is the average atomic mass for boron


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Frequently Asked Questions

What is the formula for average atomic mass?

Atomic mass = Number of protons + number of neutrons + number of electrons. In other words, when proton, electrons, and neutrons of one atom are added together then this is named as average mass of the atom. As compared to neutrons and the protons, electrons are so limited in count that it has only a small affect on the calculation.

How is the average of atomic mass determined?

Average atomic mass = f 1 M 1 + f 2 M 2 + … + f n M n where f is the fraction representing the natural abundance of the isotope and M is the mass number (weight) of the isotope. The average atomic mass of an element can be found on the periodic table, typically under the elemental symbol.

What does the average atomic mass depend on?

What does the average atomic mass depend on? The mass of the atom, its atomic mass, depends upon both the number of protons and upon the number of neutrons present in the nucleus (remember that the mass of an electron is so small that it is simply ignored for the purpose of establishing the atomic mass ).


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