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Atoms
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Nucleus
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Chemistry Section

Chapter 2

QuestionAnswer
Atoms Composed of subatomic particles. Contains protons, neutrons and electrons.
Nucleus Central part of atom, composed of protons and neutrons. Electrons move around it.
Molecule Particles formed when 2 or more atoms chemically combine.
Compound Particle formed when 2 or more atoms of different elements chemically combine.
Molecular Formula Depicts elements present and # of atoms prsent.H2O
Covalent Bonds Formed when atoms share electrons
Structural Formula Shows how atoms bond and are arranged.
Hydrogen Bonds Weak attraction between + end of a polar molecule and - end of another polar molecule. Formed between water molecules.
Proteins Structural materials, energy sources, chemical messangers and when combined with carbs, function as receptors.
Enzymes Speed chemical reactions without being consumed.
Primary Protein The amino acid sequence of the polypeptide chain.
Secondary Protein Pleated or twisted to form a coil.
Tertiary Protein Secondary shapes fold into a unique 3D structure.
Quaternary Two or more chains may be connected to form a singel protein molecule.
Created by: merobbins
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