C1.1 Fundamentals
- Created by: KateStoc
- Created on: 13-11-16 11:51
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- C1.1 Fundamentals
- Atoms
- Nucleus and Electrons
- Positive Protons
- Number of protons determine what the atom is.
- Neutral Neutrons
- Negative Electrons
- Orbit the Nucleus in shells of 2,8,8...
- Overall neutral charge
- Positive Protons
- Ions
- more/less electrons making them -/+
- Element
- Made up of ONLY one type of atom
- Nucleus and Electrons
- Periodic Table
- Split into groups of number of electrons in their outer shell
- E.g. Sodium is in Group One and has one electron in it's outer shell
- Sodium reacts with water to form an alkaline solution and hydrogen gas
- Sodium will react with oxygen to form an oxide
- Groups 1 and 7 are the most reactive
- Group 0/8 is the least reactive since it has a full outer shell
- E.g. Sodium is in Group One and has one electron in it's outer shell
- Mass Number
- Atomic Number
- Bottom number
- Number of protons/ electrons b/c they're equal
- Atomic Number - Mass Number = Number of neutrons
- Top number
- Total number of protons and neutrons
- Atomic Number - Mass Number = Number of neutrons
- Atomic Number
- Atomic Number
- Bottom number
- Number of protons/ electrons b/c they're equal
- Split into groups of number of electrons in their outer shell
- Bonding
- Ionic Bonding
- Metal donates an electron to a non-metal. Opposite charges attract
- Covalent Bonding
- Two non-metals share an electron and bond
- Very hard to separate chemical bonds
- Ionic Bonding
- Reactions
- Atoms are never made or lost.
- Mass of reactants = Mass of product(s)
- Equations must be balanced
- Atoms are never made or lost.
- Atoms
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