Chemical Bonds
Atoms
Periodic table
Chemical Reactions
Everything
100
chemical bond that forms when electrons are shared
What is covalent bond
100
anything that has mass and takes up space
What is matter
100
pure substance that cannot be broken down into any other substances by physical or chemical means.
What is a element
100
the process by which atoms or groups of atoms in substances are reorganized into different substances.
What is a chemical reaction
100
located in the center of the atom
What is neutrons and protons
200
bond between two oppositely charged atoms or groups of atoms
What is Ionic bonds
200
building blocks of matter
What is atoms
200
92
What is the number of elements that occur naturally
200
reaction that changes the substances appearance but not its composition
What is a physical reaction
200
Atoms of the same element that have different numbers of neutrons
What is isotopes
300
An atom that carries an electric charge
What is an ion
300
positively charged particles
What is protons
300
horizontal rows on the periodic table
What is periods
300
changes from water to ice
What is an example of an physical change?
300
the starting substances
What is reactions
400
compound in which the atoms are held together by a covalent bond
What is a molecule
400
negatively charged particles
What is neutrons
400
vertical rows in periodic tables
What is columns
400
rusting of a chain
What is an example of an chemical change
400
the substances formed during the reaction
What is products
500
electron
what part of an atom is important to all chemical bonds
500
negatively charged particles
What is electrons
500
unique name and symbol
What do all elements have in the periodic table
500
chemical bonds
What are bonds where the bonds are broken and /or formed during chemical reactions
500
arrow that is between the reactants and the products
What is the yield sign
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