Name: Francium

Atomic Symbol and Mass Number: Fr [87]

Electron Configuration: [Rn] 7s

Atomic Radii: 71 pm

Electron Affinity: 0.7 kJ mol -1

Oxidation States: +1

Electronegativity Value: 0.79

Elemental Group: Alkali Metal

Uses and Properties:

• Francium is a heavy, unstable, radioactive metal with a maximum half-life of only 22 minutes.

• It has a low melting point (27 oC, 81 oF) and, if enough of it could be accumulated, it would be liquid in a warm room.

• Francium is the second rarest element in the Earth's crust, next to astatine.

• Francium has been used in the field of research, chemistry and also in the atomic structure.

• It is used for diagnostics for curing cancers.

• It is also used in many spectroscopic experiments.

• Francium is a highly radioactive metal, and since it exhibits a short half-life, it does not have more impact on the environment.

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Lewis Diagram: