Half-life period of Astatine (At)

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Half-life period of Astatine (At)

Find half-life period of radioactive isotopes of different elements; find its decay type and list of particle emitted. Half-life is the time required for a quantity of radioactive element to reduce to half of its initial value.

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Half-life period of Astatine (At)

Mass	Symbol	Decay Type	Half-Life
207	²⁰⁷At		1.80 hours
208	²⁰⁸At		1.63 hours
209	²⁰⁹At		5.41 hours
210	²¹⁰At		8.1 hours
211	²¹¹At		7.21 hours
212	²¹²At	Alpha decay (a)	0.31 seconds
213	²¹³At	Alpha decay (a)	125 nanoseconds
214	²¹⁴At	Alpha decay (a)	558 nanoseconds
217	²¹⁷At		0.0323 seconds
218	²¹⁸At		2 seconds
219	²¹⁹At	Alpha decay (a)	56 seconds
220	²²⁰At		3.71 minute
221	²²¹At		2.3 minute

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