Ch 4 Earth Chemistry
BondinBonding g
Atoms Atoms EquatioEquations ns
Terms Terms RandoRandom m
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500 500 500 500 500
What bond results in the transfer of electrons from one
atom to another?
Answer
Answer
The attraction between atoms that share electrons result in ____ bonds
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Covalent Bonds
What are 2 types of chemical bonds?
Answer
Ionic and Covalent
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Group of atoms held together by chemical forces
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What 2 ways can electrons form chemical bonds?
Answer
Shared or transferred
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A ______ is a substance that cannot be broken down into simpler, stable substances
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What is the atomic number of an element?
Answer
Number of protons it has
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What 2 things make up the mass number?
Answer
Protons and neutrons
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What are subatomic particles that have no
charge and are found in the nucleus
Answer
What 2 subatomic particles are found in the nucleus?
Answer
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Protons and neutrons
What is used to show the reaction when
elements and compounds combine
to form new compounds?
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Chemical Equation
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Answer
Atom or molecule that has gained or lost electrons
What do you call the elements or molecules on
the right side of the arrow in a chemical equation?
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What does the “4” mean in SO4?
Answer
4 atoms of oxygen
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What are used to balance chemical equations?
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Coefficients
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Answer
What type of property can be observed without
changing the composition of a substance
Physical property
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Elements on the periodic table are arranged in
columns (groups) based upon their:
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Chemical properties
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What is an atom that has a different
number of neutrons than other atoms of the same element?
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Mixtures in which 2 or more substances are
not uniformly distributed are ____
mixtures
Answer
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Heterogeneous
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Solution of 2 or more metals
What properties describe reactions between
substances?
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Chemical properties
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Homogeneous mixture of 2 or more substances uniformly dispersed
throughout the mixture
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Within a group or column, the different elements usually have the same
number of _____
Answer
Valence electrons
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What is a substance made up of atoms of two or more different elements joined
together by chemical bonds?
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How are elements in the periodic table table
arranged?
Answer
In order of atomic number
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