
Actinide Series of Metals

Meet the Family
The actinide family is comprised of fifteen elements that start with actinium (Ac) at atomic number 89 and finish up with lawrencium (Lr) at number 103. It's doubtful your teachers will ever ask you to remember all of the elements in the series. You have probably heard of plutonium (Pu), since it was used in atomic bombs. Uranium (U) is also well known for its radioactivity. They aren't all used to blow up the world. Some of them help us out every day. You can find americium (Am) is some metal detectors.Related Video...
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Encyclopædia Britannica: Actinide Elements
Wikipedia: Actinide Elements
Encyclopedia.com: Actinide Series