Element 94 of Periodic table is
Plutonium with atomic number 94,
atomic weight 244.
Plutonium, symbol Pu, has a
Simple Monoclinic structure and Silver color.
Plutonium is a actinide element.
Know everything about Plutonium Facts, Physical Properties, Chemical
Properties, Electronic configuration, Atomic and Crystal Structure.
Plutonium is a transuranic radioactive chemical element with symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation states.
Read key information and facts about element Plutonium
Explore our interactive periodic table
Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of
The atomic number increases from left to right. Periodic table starts at top left ( Atomic number 1) and
ends at bottom right (atomic number 118). Therefore you can directly look for atomic number
94 to find Plutonium on periodic table.
Another way to read periodic table and locate an element is by using group number (column)
and period number (row). To locate Plutonium on periodic
table look for cross section of group N/A and period
7 in the modern periodic table.
Interactive Periodic Table to Understand
and Learn Cool Trends
The element Plutonium was discovered by Glenn T. Seaborg in year
1940 in United States
derived its name from Pluto, a dwarf planet in the Solar System (then considered the ninth planet)
The table below shows the abundance of Plutonium in Universe, Sun, Meteorites,
Earth's Crust, Oceans and Human Body.
The solid state structure of Plutonium is Simple Monoclinic.
The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in
dimensional space to form the structure.
The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell
Lattice Constants (a, b and c)
and the angles between them Lattice Angles (alpha, beta and gamma).
The positions of the atoms inside the unit cell are described by the set of atomic positions (
xi, yi, zi) measured from a reference lattice point.
The symmetry properties of the crystal are described by the concept of space groups. All possible
symmetric arrangements of particles in three-dimensional space are described by the 230 space groups
(219 distinct types, or 230 if chiral copies are considered distinct.
Plutonium atoms have 94 electrons and
the electronic shell structure is [2, 8, 18, 32, 24, 8, 2] with Atomic Term Symbol (Quantum Numbers) 7F0.
Shell Structure of Plutonium - Electrons per energy
The ground state electronic configuration of Neutral Plutonium atom is
[Rn] 5f6 7s2.
The portion of Plutonium configuration that is equivalent to the noble gas of
the preceding period, is abbreviated as [Rn]. For atoms with many electrons, this
notation can become lengthy and so an abbreviated notation is used.This is important as it is
the Valence electrons 5f6 7s2, electrons in
the outermost shell that determine the chemical properties of the element.
Complete ground state electronic configuration for the Plutonium atom, Unabbreviated electronic configuration
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f6 7s2
Plutonium atomic radius is 175 pm, while it's covalent radius is N/A.
The electron affinity of Plutonium is N/A
Refer to table below for Ionization energies of Plutonium
Refer to below table for Plutonium Physical Properties
Plutonium is Conductor of electricity. Refer to
below for the Electrical properties of Plutonium
Refer to table below for Thermal properties of Plutonium
Isotopes of rhodium. Naturally occurring Plutonium has
1 stable isotope -
List of unique identifiers to search the element in various chemical registry databases