Input interpretation
![mendelevium | atomic mass](../image_source/aa19c32b35b3864d669b5db47bdc865b.png)
mendelevium | atomic mass
Result
![258 u (unified atomic mass units) (atomic mass number given for longest-lived known isotope)](../image_source/9b09e8702a6d76e8151e3accb9868094.png)
258 u (unified atomic mass units) (atomic mass number given for longest-lived known isotope)
Unit conversions
![258 Da (daltons)](../image_source/4742a7ae8b43bd8a3fa7e5190dedecae.png)
258 Da (daltons)
![0.258 kDa (kilodaltons)](../image_source/7b3ec2551e20e04322d74c0835333580.png)
0.258 kDa (kilodaltons)
![4.28×10^-22 grams](../image_source/ccb555c76002f43cd5e1b482290e1be2.png)
4.28×10^-22 grams
![4.28×10^-25 kg (kilograms)](../image_source/b657f1fb50ff494aac5c65ebc49c9164.png)
4.28×10^-25 kg (kilograms)
![258 chemical atomic mass units (unit officially deprecated)](../image_source/6f2bf4a1fd77d0d75572864aa8e34617.png)
258 chemical atomic mass units (unit officially deprecated)
![258 physical atomic mass units (unit officially deprecated)](../image_source/270376e952f99887a39696d9a041e8ca.png)
258 physical atomic mass units (unit officially deprecated)
Comparison as mass of atom
![≈ 1.2 × lead-208 atomic mass ( ≈ 208 u )](../image_source/4ebe1b0890d353613ac1006d0d64e5ea.png)
≈ 1.2 × lead-208 atomic mass ( ≈ 208 u )
Corresponding quantities
![Relative atomic mass A_r from A_r = m_aN_A/M_u: | 258](../image_source/81b5c8dcdf3dded50544731be0a5b9e5.png)
Relative atomic mass A_r from A_r = m_aN_A/M_u: | 258
![Molar mass M from M = m_aN_A: | 258 g/mol (grams per mole)](../image_source/5e0d098bfc24b8e9ef02a75a5936a3ec.png)
Molar mass M from M = m_aN_A: | 258 g/mol (grams per mole)