1. Minerals II
By: Eldrick Santos

2. Why do atoms bond? Octet Rule - 8 electrons Chemical Bonds
- Ionic bond
- Covalent bond
- Metallic bond
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3. Ionic Bond 2 oppositely charged ions Electron donor - often a metal
Electron acceptor
- often a non metal

4. Covalent Bond
Same element or elements close to each other in the periodic table
Similar electronegativities

5. Metallic Bond Sharing of electrons in many atoms
Sea of electrons /delocalized electrons

6. Isotopes and Radioactive Decay
Mass Number
Isotopes
Radioactive Decay

7. Mass Number
Sum of protons and neutrons

8. Isotopes
Same number of protons but different number of neutrons

9. Radioactive Decay Unstable Atom
-nucleus loses energy by emitting radiation
Quantum theory
- impossible to predict when an atom will decay

10. References
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