What is Fermium?

Fermium, the one-hundredth element on the periodic table, is a synthetic, radioactive actinide marking a milestone in the actinide series.

Atomic Number: 100

Symbol: Fm

Atomic Mass: [257] u (most stable isotope)

Category: Actinide

State at Room Temperature: Solid

Discovered By: Albert Ghiorso et al. (1952)

⚛️ Atomic Structure of Fermium

Fermium has one hundred protons, one hundred fifty-seven neutrons (in its most stable isotope, Fermium-257), and one hundred electrons, with two in its outer shell.

💡 Did you know? Fermium was also discovered in the fallout of the "Ivy Mike" hydrogen bomb test!

🔬 Fermium Properties

Fermium is radioactive, silvery, and dense. Its melting point is estimated at 1527°C (2781°F), and it emits alpha radiation.

🧪 How Was Fermium Discovered?

In 1952, Albert Ghiorso and a team identified Fermium in debris from the "Ivy Mike" hydrogen bomb test, later producing it synthetically.

⚡ Uses of Fermium

💡 Fun Facts About Fermium

⚠️ Safety & Precautions

Fermium is radioactive and a radiation hazard. It requires strict handling in specialized lab conditions.

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