Chemical Principles I - CHEM 217 | Online course midterm
preparation solution new update 2024 Athabasca University
, Chemical Principles I - CHEM 217 | Online course midterm preparation solution new update
2024 Athabasca University
Chemistry - --The study of interactions between atoms and molecules. An atom is the smallest
unit of matter that enters into chemical reactions.
Electron - --Negative
Proton - --Positive
Neutron - --Neutral/no charge
Isotopes - --Atoms of the same element that have different numbers of neutrons.
Valence electrons - --The number of missing electrons in the outermost shell
Ionic bonds - --Formed when one or more electrons are transferred from one atom to another.
Attractions between ions of opposite charge.
Covalent bonds - --Sharing of electrons. Strongest bond
Hydrogen bonds - --When a hydrogen atom that is covalently bonded to an O or N atom is
attracted to another N or O atom in another molecule. Weakest bond.
Endergonic reaction - --Absorbs energy
Exergonic reaction - --Release energy
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