It is therefore classified as a synthetic element with no stable isotopes.

It is an extremely radioactive synthetic element that can only be created in a laboratory.

I wonder If you could tell me about the new synthetic elements that chemists are making.

It is a synthetic element, first produced in 1945.

Americium is a synthetic element that has the symbol Am and atomic number 95.

So far, 20 synthetic elements have been created (those with atomic numbers 99-118).

Francium is also less stable than all synthetic elements up to element 105.

You've probably heard that the synthetic elements are radioactive after we make them.

It is a synthetic element, so all isotopes are radioactive.

Nobelium is a synthetic element with the symbol No and atomic number 102.