Periodic Table · element

Polonium

Po · Z 84

atomic number

84

atomic mass

209

notation

Po

group

16: Oxygen

period

6

state0c

Solid

state20c

Solid

occurrence

From Decay

density

9.196

melting pt

254

boiling pt

962

discovered

1898

abundance

2e-10

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From the All Periodical Elements database in Notion, last edited 2026-08-15. This page is the row, rendered by the build; nothing on it is written by hand.