The Mystery of Matter

Next on Episode 3 | Glenn Seaborg

Preview: Episode 3 | 31s

Caught up in the race to discover the atom’s internal parts, Harry Moseley uses newly discovered X-rays to put the Periodic Table in a whole new light. Glenn Seaborg creates a new element —plutonium — that changes the world forever.

Aired: 08/19/15

Rating: TV-G

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