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Description
Copernicium Element CubeCopernicium's atomic number is 113 and its symbol is Cn. Its known isotopes are extremely radioactive and have only been created in a laboratory. The most stable known isotope, copernicium 285, has a half life of approximately 28 seconds. It is named after the astronomer Nicolaus Copernicus, and it was first created in 1996 by the GSI Helmholtz Centre for Heavy Ion Research near Darmstadt, Germany. Copernicium is calculated to have several properties
Copernicium's atomic number is 113 and its symbol is Cn. Its known isotopes are extremely radioactive and have only been created in a laboratory. The most stable known isotope, copernicium-285, has a half-life of approximately 28 seconds. It is named after the astronomer Nicolaus Copernicus, and it was first created in 1996 by the GSI Helmholtz Centre for Heavy Ion Research near Darmstadt, Germany. Copernicium is calculated to have several properties that differ from its lighter homologs in group 12, and it may have more similarities to the noble gases such as radon. Predictions vary on whether solid copernicium would be a metal, semiconductor, or insulator. This display is contained within crystal clear Lucite acrylic.
Please note that this item might be classified as hazardous material in certain countries. We suggest checking local guidelines to ensure compliance before placing your order.
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4.5 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
its a great ball
works well
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Reviewed in the United States on July 8, 2025
★★★★★ 5
Yes!
Size: Medium
Durable. Squeak doesn't last forever with my aggressive chewers but crinkle does. Best balls.
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Reviewed in the United States on September 28, 2025
★★★★★ 5
Balls
Size: Medium
My dog loves chasing these balls. He seems to love the squeak! They fit the chuck it stick perfectly, and are great replacements for the originals that came with the stick.
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Reviewed in the United States on February 7, 2026
★★★★★ 5
Nice set of balls
Size: Medium
The squeaker quickly became my dog’s favorite ball and has replaced the fuzzy tennis balls. My dog is a nonstop fetcher and these chuck it balls are durable and fun.
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Reviewed in the United States on January 9, 2026
★★★★★ 5
Perfect ball
Size: Medium
Our dog loves these!
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Reviewed in the United States on May 26, 2026