What is the most radioactive element?

What is the most radioactive element?

Radioactive elements are elements made up of atoms with unstable nuclei. Unstable nuclei emit ionising radiation in the form of alpha particles, beta particles or gamma rays in a process called radioactive decay. Polonium is thought of as one of the most radioactive naturally occurring elements, due to the high intensity of alpha particles it emits.

Just one gram of polonium can self heat to temperatures of 500 degrees C. However, there are elements with a higher radioactivity that have been synthesised in a lab, such as ununpentium, which is so unstable it can only last a few fractions of a second before decaying.

Answered by Rik Sargent

Working vocal cords grown in a lab for the first time

For the first time, scientists at the University of Wisconsin have managed to grow functional vocal cord tissue in the laboratory, in the hope that it can restore a voice to those who have lost their own vocal cords to cancer surgery or other injuries