Chemistry Chapter 2 Review

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Presentation transcript:

Chemistry Chapter 2 Review

Matter: Anything that takes up space and has mass.

Element vs. Compound? You need to memorize the following: 92 elements are naturally occuring (in nature) You need to memorize the following: O, C, H, N, Ca, P, K, S, Na, Cl, Mg (C, H, O, and N = Life)

Properties of an Atom

Terms to know: Neutron: Protons: Electrons: Atomic Number: Atomic Mass: Isotope:

Isotope

Electrons

Electron Energy

Valence Electrons # of electrons in the outermost shell, responsible for chemical bonding. Noble Gases?

Types of Bonds Ionic Covalent Polar vs Non-polar Single, double, triple Hydrogen Metallic

Interactions of Matter In order to achieve stability, an atom will either gain, lose, or share e-s, which will change the physical and chemical characteristics Ionic Bonds – transfer of e-s

Interactions of Matter Covalent Bonds – sharing e-s; can be single, double, or triple bonds

Interactions of Matter Polar Covalent Bonds – unequal sharing of e-s

Interactions of Matter H-bonds and Van der Waals – interaction between slight charges

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