ISAT Preparation
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ISAT Preparation ISAT Preparation Chemistry Chemistry Atoms, Molecules, and Atoms, Molecules, and Compounds Compounds
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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 - PowerPoint PPT Presentation
Transcript of ISAT Preparation
ISAT PreparationISAT Preparation
ChemistryChemistry
Atoms, Molecules, and CompoundsAtoms, Molecules, and Compounds
VocabularyVocabulary
AtomAtom
MoleculeMolecule
CompoundCompound
ProtonProton
NeutronNeutron
ElectronElectron
NucleusNucleus
Chemical FormulaChemical Formula
ChemistryChemistry
Atom – smallest unit of matterAtom – smallest unit of matter
Maintains the same properties of a pure Maintains the same properties of a pure substancesubstance
Example – copper pennyExample – copper penny
Molecules – atoms that are combined Molecules – atoms that are combined together make up moleculestogether make up molecules
Ex. HEx. H22O, COO, CO22, H, H22OO22, CO, NO, CO, NO22, N, N22OO
ChemistryChemistry
ChemistryChemistry
Compound is a pure substance made up of Compound is a pure substance made up of two or more atomstwo or more atoms
Bunch of the same molecules make up a Bunch of the same molecules make up a compoundcompound
Atoms are made up of sub-atomic particles Atoms are made up of sub-atomic particles that have their own propertiesthat have their own properties
ChemistryChemistry
ChemistryChemistry
Inside the nucleus – core of atomInside the nucleus – core of atom
Proton – positive charge and has weightProton – positive charge and has weight
Neutron – neutral or no charge and has Neutron – neutral or no charge and has weightweight
Outside the nucleusOutside the nucleus
Electrons – negative charge and has no Electrons – negative charge and has no weightweight
ChemistryChemistry
1.1. What are atoms?What are atoms?
2.2. What is the difference between What is the difference between molecules and compounds?molecules and compounds?
3.3. What charge does a proton and an What charge does a proton and an electron have?electron have?
4.4. Which of the following particles has no Which of the following particles has no weight?weight?
5.5. What is an atom mainly made of?What is an atom mainly made of?
ChemistryChemistry
Make MoleculesMake Molecules
Black – CarbonBlack – Carbon White – HydrogenWhite – Hydrogen
Red – OxygenRed – Oxygen Blue – NitrogenBlue – Nitrogen
A.A. HH22OO B. NHB. NH33
C. CHC. CH44 D. OD. O22
E. NE. N22 F. CHF. CH33OHOH
G. HG. H22OO22 H. CH. C22HH44
