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1st semeter vocab

What is a proton? A proton is a positive charged particle found in the nucleus of an atom
What is a neutron? A neutron is a neutral(no charge)particle found in the nucleus of a atom
What is a electron? A electron is a negative charged particle found in a electron shell of a atom
Define valence electrons. Valence electrons are found on the outer shell.All elements in the same group have the same # of valence electrons.
When should you use safety goggles? You should use safety goggles when heating liquids,working with chemicals,and when a teacher tells you to
When do you use a petri dish? For growing microrganisms
When do you use tongs? when picking up hot objects
When do you use test tubes? to hold small amounts of liquids or chemicals
What is a element? It is a substance made entirely from one type of atom
What is a periodic table? It is a table with elements arranged by atomic number and mass in rows
Define group. The rows are vertical.All elements in the same group have the same chemical properties and the same number of electron shells.
Define period. The rows are horizontal.All elements in the same peroid have the same number of electron shells
Define Newton's First law An object will stay at rest or in motion unless acted upon by a unbalanced force
Define Newton's Second law A force acted on by a unbalanced force will accelerate in the direction of the force. Force = Mass x Acceleration
Define Newton's Third law forces always act in a equal but opposite reaction
What is the Law of Consevation of Mass? It states that matter is neither created nor destroyed
What is a chemical equation? It is a shorthand form of writing that shows what reactants and products are formed in chemical reaction
What is the reactant? Substance that exists before chemical reaction
What is the product? Substance that forms as a result of a chemical reaction
What is inertia? when an object's tendency to remain at rest or keep moving with constant velocity.Depends on mass
Created by: N0407257