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Science Mind-Map - Coggle Diagram
Science Mind-Map
Atomic Structure
Atom Hydrogen atom (H), carbon atom (C)
Neutron Carbon-12 has 6 neutrons, carbon-14 has 8 neutrons
Electron Oxygen has 8 electrons, sodium has 11 electrons
Proton Hydrogen has 1 proton, carbon has 6 protons
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Atomic Number Hydrogen’s atomic number is 1, oxygen’s is 8
Atomic Mass Carbon has an atomic mass of about 12 u, oxygen about 16 u
Subatomic Particle Electron (negative charge), neutron (neutral charge)
Bohr Model Bohr model of hydrogen, Bohr model of lithium
Electric Charge Sodium ion (Na⁺) has +1 charge, chloride ion (Cl⁻) has -1 charge
Lewis Structures Lewis structure of H₂O, Lewis structure of CO₂
Ions Na⁺ (sodium ion), Cl⁻ (chloride ion)
Valence Electrons and Octet Rules Oxygen has 6 valence electrons, neon has 8 and is stable
Shells Carbon’s electrons occupy two shells, neon’s electrons occupy two shells
Properties of Matter
Matter Air, water
Physical Property Color, melting point
Chemical Property Flammability, reactivity with acid
Density Lead is denser than aluminum, oil floats on water
Volume A water bottle holds 500 mL, a balloon has a volume of 2 L
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Classification of Matter
Pure Substances Water (H₂O), oxygen (O₂)
Compound Water (H₂O), carbon dioxide (CO₂)
Element Gold (Au), helium (He)
Mixtures Saltwater, air
Heterogenous Mixture Salad, sand and iron filings
Homogenous Mixture Sugar dissolved in water, air
Changes in Matter
Chemical Change Rusting iron, burning wood
Physical Change Ice melting, paper tearing
Energy Heat energy in combustion, electrical energy in batteries
Scientific Methods
Hypothesis "If plants receive more sunlight, then they will grow taller", "If salt is added to water, then the boiling point will increase"
Graphing Line graph of temperature changes, bar graph of population growth
Periodic Table Trends Atomic radius increases down a group, decreases across a period
Reactivity Sodium is highly reactive, helium is not
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