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