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Bio Basic Chem

TermDefinition
What are all living things made of? Atoms
An atom is the ________ part of an element Smallest
What are all the different types of atoms arranged in? The Periodic Table of Elements
What are atoms made up of? Subatomic Particles
How many electrons are in the first shell? 2
How many electrons are in the outer shell? 6
Valence Electrons Electrons in the outer shell
What is the charge of a proton? Positive
What is the charge of a neutron? Nothing
What is the charge of an electron? Negative
What is the mass of a proton? 1
What is the mass of an electron? 0
What is the mass of a neutron? 1
What is inside the nucleus? Neutrons and protons
What particles are found in the outermost shell? Electrons
How many types of atoms is an element made up of? 1 type
Can elements be broken into simple substances? No
What is a compound made of? 2 or more elements that are chemically bonded
Can compounds be broken down? Yes, chemically, but not physically
What is a mixture? Two or more types of atoms that are not chemically bonded
Can a mixture be seperated? Yes, physically
Bond Lasting attraction between two or more atoms, ions, or molecules
Can bonds be broken down? Only by chemical reactions
What happens when two or more atoms bond? It forms a molecule
What are bonds represented by in scientific diagrams? A straight line
Covalent Bonds Nonmetal + Nonmetal
Ionic Bonds Metal + Nonmetal
Ions Charged atoms or molecules
Cohesion Water molecules stick to eachother
Adhesion Water molecules stick to OTHER objects
Surface Tension Water molecules form a film on the surface of the water
Capillary Action Water "climbs" up against gravity
High Specific Heat Water resists temp changes
Universal Solvent Water dissolves most anything
Expands when frozen Ice floats on liquid water
Polarity Uneven distribution of charged distribution throughout a molecule
is water polar or nonpolar? Polar
What is a polar covalent molecule composed of? Two H and one O
What does each individual water molecule form? Hydrogen Bonds
Created by: walshga27
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