Mass Of Electron In Amu

1 kilogram is equal to 6.949E+26 amu, or 5.872E+35 electronvolt. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between atomic mass units and electronvolt. The formal definition of the Atomic Mass Unit (AMU) is 1/12 the mass of a carbon-12 atom. Less formally, the AMU is the average of the rest mass of the protons and neutrons in an atom.

In atomic mass units, what is the mass of an electron?

1 Answer

Explanation:

The mass of an electron is listed as being equal to

#m_'electron' = 9.10938356 * 10^(-31)'kg'#

The unified atomic mass unit, or #u#, is defined as the mass of one nucleon, that is a proton or a neutron. More specifically, one unified atomic mass unit is equal to #1/12'th'# of the mass of a carbon-12 atom.

A carbon-12 atom has six protons and six neutrons in its nucleus and a molar mass of #'12.0 g/mol'#. This means that you can find the value of #u# in kilograms by using Avogadro's number

#12.0'g'/color(red)(cancel(color(black)('mol'))) * (1color(red)(cancel(color(black)('mole'))))/(6.022 * 10^(23)'atoms') = 1.992693457 * 10^(-23)'g/atom'#

Please don t touch anything soundtrack. Since you need #1/12'th'# of the mass of a single carbon-12 atom, it follows that you have Dpfilelist bin download.

= 0.000548579909 Atomic Mass Units

#1/12 * 1.992693457 * 10^(-23)color(red)(cancel(color(black)('g'))) * '1 kg'/(10^3color(red)(cancel(color(black)('g')))) ~~ 1.660538922 * 10^(-27)'kg'#

Therefore, you have

In Amu What Is The Mass Of An Electron

#'1 u' = 1.660538922 * 10^(-27)'kg'# Switchfoot meant to live video.

Mass Of An Electron In Amu

This means that the mass of an electron expressed in unified atomic mass units will be equal to

#9.10938356 * 10^(-31)color(red)(cancel(color(black)('kg'))) * '1 u'/(1.660538922 * 10^(-27)color(red)(cancel(color(black)('kg')))) = 5.4858 * 10^(-4)'u'#

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