Respuesta :
Explanation:
The building blocks of matter are called atoms
A substance made up of the same kind of atoms is called a element
unstable elements lose particles
This makes them radioactive
(i dd the assignment)
The correct words are:
- Atoms
- Element
- Particles
- Radioactive
- An atom is the smallest and indivisible part of matter.
- An element is made up of atoms with an equal amount of protons in them. A particle is what makes up an element.
- Radioactivity occurs when there is a sudden burst of radiation.
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