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Pre – AP Biology. Chemistry of Life (2.1) Part 1. Element Chlorine (Cl). Compound Sodium (Na) + Chlorine (Cl) salt (NaCl). CHNOPS = Life. Chemistry has many different levels of structure and terminology. Which of the following chemical terms includes all the other terms? Molecule
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Pre – AP Biology Chemistry of Life (2.1) Part 1
Chemistry has many different levels of structure and terminology. • Which of the following chemical terms includes all the other terms? • Molecule • Element • Atom • Polymer
Atoms found on a Periodic TableSee the energy levels of electrons?
Periodic Table of ElementsAtomic Mass is shown on the bottom of each squareAtomic Number is shown in the upper left corner
Elemental OxygenHow many protons in Oxygen atoms?How many neutrons in Oxygen atoms normally?
Pre – AP Biology Chemistry of Life Part 2
Potential EnergyEnergy of PositionWhich diver has more potential energy?
Potential “stored” energy of the electrons in the bond between Oxygen (O) and Hydrogen(H)
Periodic Table of ElementsAtomic Mass is shown on the bottom of each squareAtomic Number is shown in the upper left corner
Period on a periodic tablePeriod run horizontally, like sentences
Families on a periodic tableFamilies run vertically, like columns
Covalent BondsSee the shared electrons between Carbon(C) and Hydrogen (H)?
Polar covalent bonding of water molecule See how each end(pole) has an electrical charge?
Molecular Formula CH4 Methane gas 1 atom of Carbon & 4 atoms of Hydrogen
Ionic bondingSee the electron being lost from Na and gained by Cl?
Hydrogen BondingSee the positive Hydrogen (H) attracted to the negative Nitrogen (N)?