Matter and building
Blocks. Everything is matter
And mass takes up space.
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Atoms smallest part
Of an element. Protons
Neutrons, electrons.
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Protons positive
Charge. All in the nucleus,
The atom's center.
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The neutrons share with
Protons nucleus center
Neutral / positive.
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Electrons orbit
As these negatively charged
Particles hold space.
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Chemistry--study
Of matter: composition
Properties / changes.
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The periodic
Table groups all elements
By their properties.
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Knowing reactions
Bonding, stoichiometry
Conservation laws.
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Atoms do combine
To then form all molecules
Held--chemical bonds.
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Elements are pure
Made of one type of atom
Oxigen / iron.
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Compounds, different
Elements--fixed proportions
H 2 O or salt.
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Atoms bond to get
Stable configurations
Remain the same form.
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The electrons shared
Fill outer electron shells
They are covalent.
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They are ionic
If transferring positions
To fill outer shell.
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The periodic
Table organizes all
The known elements.
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Based on atomic
Number, chemical feature
And behavior.
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The states of matter
Exist--different phases
Solid liquid gas.
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Energy changes
Absorbing endothermic
Or exothermic.
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Weak: boiling / melting
Intermolecular force
Versus stronger bond.
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Mass conservation
Not created nor destroyed
In a closed system.
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