Hassium

Hassium is a synthetic radioactive chemical element with the atomic number 108. It is a silvery-white metal that is highly radioactive and toxic. Hassium is not found naturally on Earth and must be produced in a laboratory. Scientists think hassium is a metal, but have not been able to produce enough atoms to study it in … Read more

Bohrium

Bohrium is a synthetic radioactive chemical element with the atomic number 107. It is a silvery-white metal that is highly radioactive and toxic. Bohrium is not found naturally on Earth and must be produced in a laboratory. Bohrium is an artificial element named after the Danish Nobel laureate physicist Niels Bohr, who made significant contributions to our … Read more

Seaborgium

Seaborgium is a synthetic radioactive chemical element with the atomic number 106. It is a silvery-white metal that is highly radioactive and toxic. Seaborgium is not found naturally on Earth and must be produced in a laboratory. Seaborgium atoms split in about three minutes, so very little is known about it. Scientists think it may … Read more

Dubnium

Dubnium is a synthetic radioactive chemical element with the atomic number 105. It is a silvery-white metal that is highly radioactive and toxic. Dubnium is not found naturally on Earth and must be produced in a laboratory. It took scientists almost 30 years to agree on a name for this element. They finally chose dubnium, … Read more

Rutherfordium

Rutherfordium is a synthetic radioactive chemical element with the atomic number 104. It is a silvery-white metal that is highly radioactive and toxic. Rutherfordium is not found naturally on Earth and must be produced in a laboratory. Rutherfordium was the first superheavy element to be discovered. In this type of element, each atom has 104 or … Read more

Lawrencium

Lawrencium is a synthetic radioactive chemical element with the atomic number 103. It is a silvery-white metal that is highly radioactive and toxic. Lawrencium is not found naturally on Earth and must be produced in a laboratory. The element lawrentium is named after the American scientist Ernest Lawrence, who developed the first cyclotron particle accelerator. … Read more

Nobelium

Nobelium is a synthetic radioactive chemical element with the atomic number 102. It is a silvery-white metal that is highly radioactive and toxic. Nobelium is not found naturally on Earth and must be produced in a laboratory. This artificial metal is named after the Swedish chemist Alfred Nobel, the inventor of dynamite who in his … Read more

Mendelevium

Mendelevium is a synthetic radioactive chemical element with the atomic number 101. It is a silvery-white metal that is highly radioactive and toxic. Mendelevium is not found naturally on Earth and must be produced in a laboratory. The element mendelevium is named after the Russian chemist Dmitri Mendeleev, who is best known for his work … Read more

Fermium

Fermium is a synthetic radioactive chemical element with the atomic number 100. It is a silvery-white metal that is highly radioactive and toxic. Fermium is not found naturally on Earth and must be produced in a laboratory. The artificial element fermium is named after Italian Nobel laureate physicist Enrico Fermi. He built the first nuclear reactor … Read more

Einsteinium

Einsteinium is a synthetic radioactive chemical element with the atomic number 99. It is a silvery-white metal that is highly radioactive and toxic. Einsteinium is not found naturally on Earth and must be produced in a laboratory. The element einsteinium was discovered in the chemicals left over after the first nuclear hydrogen bomb test in 1952. … Read more

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