Periodic table / Mendelevium

Overview

Mendelevium is a synthetic element with chemical symbol Md (formerly Mv) and atomic number 101. A metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities through neutron bombardment of lighter elements. It is the antepenultimate actinide and the ninth transuranic element.

Electron configuration

The electron configuration of Mendelevium is [Rn] 5f13 7s2, with electron shells of 2, 8, 18, 32, 31, 8, 2.

Physical and chemical properties

Mendelevium is classified as a actinide. It has an atomic mass of 258 and exists as a solid at standard conditions.

Real-world uses of Mendelevium

Mendelevium is an actinide studied primarily in nuclear science and research due to its radioactive properties.

Interesting facts about Mendelevium

• Mendelevium has the atomic number 101 and chemical symbol Md.
• It belongs to period 7, group 3 of the periodic table.
• Mendelevium was discovered by Lawrence Berkeley National Laboratory.

Explore Mendelevium interactively

Want to compare Mendelevium with other elements or see it highlighted on the full table? Open the interactive periodic table and click on Md to explore properties, trends, and neighboring elements. You can also test your knowledge with our periodic table quiz game.