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Discovery timeline
1898

Elements discovered in 1898

4 elements

Element	Symbol	Atomic number	Atomic mass	Minerals
Neon	Ne	10	20.2 u	—
Krypton	Kr	36	83.8 u	—
Polonium	Po	84	209.0 u	—
Radium	Ra	88	226.0 u	—

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