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Title: Dubnium
Content: Dubnium silih tunggil datu kimia sintésis antuk simbol Db miwah wilangan atom 105. Dubnium sanget radioaktip: isotop sané pinih tegteg kauningin, dubnium-268, ngelah paruh idup sawatara 28 jam. Punika sanget ngawatesin panelitian indik dubnium.

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Datu kimia
Datu sintésis