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Putting Atoms together

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Presentation on theme: "Putting Atoms together"— Presentation transcript:

1 Putting Atoms together
Section 7.1 Putting Atoms together

2 Key Terms Molecule – two or more atoms joined together by a chemical bond Chemical formula – tells us the type and number of atoms in a molecule Molecular element – a molecule that is made up of two atoms of the same element. Cl2, Br2, F2, O2

3 Ionic Compounds Formed by a metal and a nonmetal
They have ions (charged particles) Metals are positively charged Nonmetals are negatively charged The metal gives its electron to the non metal Sodium gives its electron to chlorine to make sodium chloride. Gizmo…

4 Molecular/Covalent Compound
Formed by two or more nonmetals They share the electron Gizmo…

5 Counting Atoms How many of each type of element are present in each compound? C2H CaBr2 NH4BrO3

6 Today’s Tasks Counting Atoms worksheet

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