Atomic Number of Polonium

Polonium Atomic Number

Atomic Number of Polonium is 84.

Chemical symbol for Polonium is Po. Number of protons in Polonium is 84. Atomic weight of Polonium is 209 u or g/mol. Melting point of Polonium is 254 °C and its the boiling point is 962 °C.

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About Polonium

Polonium is the chemical element which was discovered by Marie Curie in the very end of the 19th century and named after her homeland, Poland. It is a very unstable radioactive metalloid, quite toxic and dangerous to all living organisms. It is very rare in nature and can be obtained from ores of uranium and bismuth. Polonium is used as a material for nuclear reactions as source of neutrons and heat, i.e. for space devices. It is also used for various scientific purposes.

Properties of Polonium Element

Atomic Number (Z)84
Atomic SymbolPo
Atomic Weight209 u
Density9.32 g/cm3
Melting Point (K)527 K
Melting Point (℃)254 °C
Boiling Point (K)1235 K
Boiling Point (℃)962 °C
Heat Capacity
Abundance2×10−10 mg/kg
State at STPSolid
Electronegativity (Pauling) χ2
Ionization Energy (eV)8.417
Atomic Radius190pm
Covalent Radiusno datapm
Valence Electrons6
Year of Discovery1898
DiscovererMarie and Pierre Curie

What is the Boiling Point of Polonium?

Polonium boiling point is 962 °C. Boiling point of Polonium in Kelvin is 1235 K.

What is the Melting Point of Polonium?

Polonium melting point is 254 °C. Melting point of Polonium in Kelvin is 527 K.

How Abundant is Polonium?

Abundant value of Polonium is 2×10−10 mg/kg.

What is the State of Polonium at Standard Temperature and Pressure (STP)?

State of Polonium is Solid at standard temperature and pressure at 0℃ and one atmosphere pressure.

When was Polonium Discovered?

Polonium was discovered in 1898.