Mendeleev فارسی

Plutonium (Pu) – Element 94 of the periodic table

Plutonium (symbol Pu) is element number 94 of the periodic table and belongs to the “Actinide” category. Its atomic mass is about 244, and its phase under standard conditions is Solid. This element sits in period 7 and the f-block (Actinides) of the periodic table, and its electrons are arranged in shells of 2, 8, 18, 32, 24, 8, 2. The short electron configuration of Plutonium is [Rn] 5f⁶ 7s². Known uses of Plutonium include Nuclear fuel, Nuclear weapons and Space batteries.

View in the interactive periodic tableAsk the AI assistant

Plutonium is a radioactive, mostly synthetic element; its data may be based on limited experiments or theoretical prediction.

Properties of Plutonium

Atomic number
94
Chemical symbol
Pu
Atomic mass
244
Category
Actinide
Period
7
Block
f
Phase
Solid
Protons
94
Electrons
94
Neutrons (approx.)
150
Electron shells
2, 8, 18, 32, 24, 8, 2
Outer-shell electrons
2
Discovered
Glenn Seaborg (1940)

Electron configuration of Plutonium

The electron configuration of Plutonium (Pu), with 94 electrons, is shown below. The last shell (shell 7) is highlighted:

Full configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 5f⁶ 6s² 6p⁶ 7s²
Short configuration
[Rn] 5f⁶ 7s²
Last shell
7s²

What is electron configuration and how is it written?

Electron shells of Plutonium

Distribution of 94 electrons of Plutonium across shells K to Q:

  1. K2
  2. L8
  3. M18
  4. N32
  5. O24
  6. P8
  7. Q2

What is a actinide?

The actinides are the 15 elements from actinium to lawrencium, part of the f-block, and all of them are radioactive.

Uses of Plutonium

Frequently asked questions about Plutonium

What is the atomic number of Plutonium?

The atomic number of Plutonium (Pu) is 94; that is, every atom of it has 94 protons.

What is the electron configuration of Plutonium?

The electron configuration of Plutonium (Pu) is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 5f⁶ 6s² 6p⁶ 7s²; in short form it is [Rn] 5f⁶ 7s², and its last shell is 7s².

What is the chemical symbol of Plutonium?

The chemical symbol of Plutonium is Pu.

Where is Plutonium located in the periodic table?

Plutonium is located in period 7 and the f-block (Actinides) and belongs to the “Actinide” category.

What is the atomic mass of Plutonium?

The atomic mass of Plutonium is about 244 (atomic mass units).

What is the phase of Plutonium under normal conditions?

The phase of Plutonium under standard conditions is Solid.

What are the uses of Plutonium?

Uses of Plutonium include Nuclear fuel, Nuclear weapons and Space batteries.

Who discovered Plutonium?

Plutonium was discovered by Glenn Seaborg in 1940.

Elements in the same category as Plutonium (Actinide)

Actinium (Ac)Thorium (Th)Protactinium (Pa)Uranium (U)Neptunium (Np)Americium (Am)Curium (Cm)Berkelium (Bk)Californium (Cf)Einsteinium (Es)Fermium (Fm)Mendelevium (Md)Nobelium (No)Lawrencium (Lr)

See all Actinides