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Atoms and Molecules

QuestionAnswer
Consists of one type of atom. element
The smallest particle into which an element can be divided. atom
Atomic number the number of protons an atom has
Atomic mass the number of protons and neutrons in an atom
Orbital an area of space in which an electron will be found 90% of the time
What shape is the s orbital? spherical
What shape is the px, py, pz ortibal and where are they located? dumbell, located along the x, y, z axes
The furthermost right column in the Periodic Table inert or noble gases
The number of electrons gained or lost ultimately determines what? the number and types of chemical bonds an element can form.
Electronegativity the ability of an atom to gain an electron.
Ionic bond form from oppositely charged ion. Na+ Cl-
Covalent bond form when differences of electronegativities of atoms are equal or similar.
Hydrogen bond weak electrical attraction between the partially positive end and the partially negative end of another.
Molecules compounds in which elements are definite, fixed ratios.
Combination reactions when two separate reactants are bonded together. A + B --> AB
Dissociation reactions when a compound is broken into two products. AB --> A + B
Polar covalent bond when one atom in a covalent bond is more electronegative than the other.
Van der Waals interactions weak interactions between regions of nonpolar molecules, resulting in charge fluctuations within molecules.
What is the process of photosynthesis? 6CO2 + 6H2O --> C6H12O6 + 6H2O
Chemical equilibrium the rate of formation of products is the same as the rate of breakdown of products.
Created by: pacetej
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