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Vocabulary
All about electrons
Bonding
Compounds and Such
Other
100
An atom or group of atoms that has a positive or negative charge.
What is an ion.
100
An electron dot diagram is a model of an atom with each dot representing what?
What is a valence electron.
100
What kind of bond forms between the sodium and chlorine in sodium chloride?
What is an ionic bond.
100
TRUE or FALSE: The properties of an ionic compound can be explained by the weak attractions among ions within a crystal lattice.
What is False.
100
What is a polar covalent bond?
What is a bond in which electrons are not shared equally.
200
An ion with a negative charge.
What is an anion.
200
How do some elements achieve stable electron configurations?
By transferring electrons.
200
What is a covalent bond?
What is a bond between two atoms and they share electrons.
200
A ____________ is a neutral group of atoms that are joined together by one or more covalent bonds.
What is molecule.
200
TRUE or FALSE: The attraction between the shared electrons and the protons in each nucleus hold the atoms together in a covalent bond.
What is True.
300
The force that holds atoms or ions or molecules together as a unit.
What is a chemical bond.
300
What is the charge on the Sodium ion and what is the charge on the Chloride ion?
Sodium is +1, Chlorine is -1
300
The mobility of _____________ within a metal lattice explains some of the properties of metals.
What is electrons.
300
How do you correctly write the name of an ionic compound?
The name of the cation, then the anion.
300
Ionic compounds usually have _________ melting point & when melted are ___________ conductors of electric current.
What is high;good
400
The force that holds cations and anions together.
What is ionic bond.
400
When is an atom considered stable and not likely to react?
When the highest occupied energy level is filled with electrons.
400
A _________ bond is the attraction between a metal cation and the shared electrons that surround it.
What is metallic.
400
What information is given by the chemical formula of a compound?
What elements are in the compound & the ratio (amounts) of those elements.
400
Bronze is an alloy of copper and ____________.
What is tin.
500
A covalently bonded group of atoms that has a positive or negative charge and acts as a unit.
What is a polyatomic ion
500
What factors determine whether a molecule is polar or nonpolar?
The types of atoms & the shape
500
What are commonly used in the name of a compound that contains a transition metal?
What are Roman numerals.
500
Steel is an alloy made of _________, some ___________, and sometimes other elements.
What is iron;carbon