Definition:Neutron/Mass

Mass of Neutron

The mass of the neutron is given by:

\(\ds m_{\mathrm n}\)

\(\approx\)

\(\ds 1 \cdotp 67492 \, 74980 \, 4(95) \times 10^{-27}\)

kilograms

\(\quad\) This sequence is A230848 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).

\(\ds \)

\(\approx\)

\(\ds 1 \cdotp 67492 \, 74980 \, 4(95) \times 10^{-24}\)

grams

\(\quad\) This sequence is A230848 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).

\(\ds \)

\(\approx\)

\(\ds 1 \cdotp 00866 \, 49158 \, 8(49)\)

daltons

\(\quad\) This sequence is A003675 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).

Symbol

$m_{\mathrm n}$

The symbol for the neutron mass is $m_{\mathrm n}$.

The $\LaTeX$ code for \(m_{\mathrm n}\) is m_{\mathrm n} .

Also known as

The mass of the neutron is also known as the neutron rest mass.

Sources

• 1964: Milton Abramowitz and Irene A. Stegun: Handbook of Mathematical Functions ... (previous) ... (next): $2$. Physical Constants and Conversion Factors: Table $2.3$ Adjusted Values of Constants

which gives the mantissas of these figures as:

$1 \cdotp 674 \, 920$ with an uncertainty of $\pm 11$ corresponding to the $2$ least significant figures

$1 \cdotp 008 \, 665 \, 20$ with an uncertainty of $\pm 10$ corresponding to the $2$ least significant figures