





Number of Energy Levels: 7

First Energy Level: 2

Second Energy Level: 8

Third Energy Level: 18

Fourth Energy Level: 32

Fifth Energy Level: 21

Sixth Energy Level: 9

Seventh Energy Level: 2

Isotope Half Life U-230 20.8 days U-231 4.2 days U-232 70.0 years U-233 159000.0 years U-234 247000.0 years U-235 7.0004E8 years U-236 2.34E7 years U-237 6.75 days U-238 4.47E9 years U-239 23.5 minutes U-240 14.1 hours

From the University of Wisconsin-Madison

Contains information about uranium and nuclear power

Chemical Element.com - Uranium

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