2. Atom- building blocks of matter Inside the atom is the nucleus. The nucleus contains protons and neutrons while surrounding the nucleus are the electrons .
3. Electron -> (e - ) ← Electron (e - ) ← Protons & ← Neutrons (p + ) & (n 0 )
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6. All matter is made up of atoms. Elements - when all the atoms in the matter are the same. There are 118 elements. Ex: Carbon and Oxygen
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15. Van der Waals Forces- attractive forces between the positive and negative regions pull on a molecule and hold them together. Ex: Water The areas of slight positive and negative charge around the water molecules are attracted to the opposite charge of other nearby water molecules. These forces hold water molecules together.
17. atom nucleus proton neutron electron element isotope compound covalent bond molecule ion ionic bond van der Waals force Vocabulary – Section 1 http://science.widener.edu/~svanbram/ptable_6.pdf
