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Unit 2


What do Bohr Models and Lewis Structures have in common? They show electrons of an atom
How do you determine valence electrons? Looking at what column it's in
If an atom has a charge of -2, what type of ion is it? It is a cation because it is losing two electrons
What type of bonds are in an ionic bond? Non-metals
Water goes from ice, to water, to steam. Is this a physical change of a chemical change? This is a physical change because nothing is being made or destroyed.
What occurs in an endothermic reaction? When more energy is being absorbed than released.
What occurs in an exothermic reaction? When more energy is being released than absorbed.
Created by: zoe_xnne