Cards in this guide (5)
Which of the following elements tend to be radioactive
Ra and Ac
Pu and Th
Am and U
An element is a substance composed of atoms that all have the same number of electrons
Groups are organized by the number of valence electrons that are found in their outer electron
What is a bond that is an electrostatic attraction between atoms of opposite charges
Alpha decay and beta decay are two forms of decay that cause transmutation