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ISAT Preparation

ISAT Preparation. Chemistry Atoms, Molecules, and Compounds. Vocabulary. Atom Molecule Compound Proton Neutron Electron Nucleus Chemical Formula. Chemistry. Atom – smallest unit of matter Maintains the same properties of a pure substance Example – copper penny

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ISAT Preparation

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  1. ISAT Preparation Chemistry Atoms, Molecules, and Compounds

  2. Vocabulary Atom Molecule Compound Proton Neutron Electron Nucleus Chemical Formula

  3. Chemistry Atom – smallest unit of matter Maintains the same properties of a pure substance Example – copper penny Molecules – atoms that are combined together make up molecules Ex. H2O, CO2, H2O2, CO, NO2, N2O

  4. Chemistry

  5. Chemistry Compound is a pure substance made up of two or more atoms Bunch of the same molecules make up a compound Atoms are made up of sub-atomic particles that have their own properties

  6. Chemistry

  7. Chemistry Inside the nucleus – core of atom Proton – positive charge and has weight Neutron – neutral or no charge and has weight Outside the nucleus Electrons – negative charge and has no weight

  8. Chemistry What are atoms? What is the difference between molecules and compounds? What charge does a proton and an electron have? Which of the following particles has no weight? What is an atom mainly made of?

  9. Chemistry Make Molecules Black – Carbon White – Hydrogen Red – Oxygen Blue – Nitrogen H2O B. NH3 C. CH4 D. O2 E. N2 F. CH3OH G. H2O2 H. C2H4

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