ELEMENTS AND ATOMS

1. Element: a substance that can´t be broken down any further into anything simpler.

2. Atom: the smallest particle of an element that has the same chemical properties as the element.

3. Nucleus: an atom´s dense center, where most of its mass is.

4. Electron: a negatively charged particle that moves around an atom´s nucleus.

5. Proton: a positively charged particle inside an atom´s nucleus.

6. Neutron: a particle with no charge inside an atom´s nucleus

7. Atomic Number: the number of protons in an atom.

8. Metal: any of the group of elements that conduct heat and electricity, is shiny and bendable.