Elements, Substances, and Mixtures
Atomic Structure and The Periodic Table
More periodic Table
Electrons and Ions
Bonding
100
A substance that contains two or more elements chemically combined in a fixed proportion.
What is a compound?
100
Where the electron(s) is/are found.
What is outside the nucleus of the atom?
100
These are indicated by horizontal rows on the periodic table.
What are the periods?
100
Valence electrons are responsible for this.
What is an atom's chemical behavior?
100
An ionic bond is the transfer of electrons and a covalent bond is a sharing of electrons.
What is How does a covalent bond differ from an ionic bond?
200
Includes only elements.
What is a pure substance?
200
100 of these.
What is Approximately how many chemical elements are there?
200
This is the column where alkali metals are found.
What is Group 1A of the periodic table?
200
When a potassium (K) atom becomes an ion.
What is "when K loses one electron"?
200
This multiple bond shares 4 electrons.
What is How many electrons are shared in a double bond between two atoms?
300
Includes Gatorade.
What is a homogeneous mixture?
300
indicates the number of protons.
What does the atomic number of an atom indicate?
300
This is another name for the elements in Group 7A of the periodic table.
What is the halogens?
300
When a calcium (Ca) atom loses two electrons.
When does calcium (Ca) atom becomes an ion?
300
O–N has this kind of bond.
What is primarily covalent?
400
Crushing is this kind of change.
What is a physical change?
400
These have an unequal number of protons and electrons.
What is an ion?
400
This is where the noble gases are found on the periodic table.
What is Group 8A?
400
This is the symbol for ion O with a single positive charge.
What is the symbol for the non-existent O+ ion.
400
O–O this kind of bond.
What is completely nonpolar covalent?
500
In any process, energy is neither created nor destroyed.
What is a statement of the law of conservation of energy?
500
The symbol 9superscript19subscriptF indicates this about a fluorine atom.
What is 9 protons and 10 neutrons.
500
This is a name for two atoms with the same number of protons but different numbers of neutrons.
What are isotopes?
500
The Lewis dot diagram of the element fluorine (F).
What is an Capital F with 7 dots surrounding it?
500
This is the kinds of bonds found in a molecule of carbon dioxide which connect the carbon atom to the 2 oxygen atoms.
What is two double bonds?
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