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100
What is an ion?
a particle with a positive or negative charge from transferring electrons
100
What is a molecule?
an uncharged group of two or more atoms held together by covalent bonds
100
What are two ways to achieve stability?
transfer electrons and share electrons
100
What particle may be gained, lost or shared when a chemical bond is formed?
electrons
100
What is sodium stored under?
oil
200
What is an ionic bond?
the force of attraction between two oppositely charged ions
200
What is a covalent bond?
the attraction between two atoms that share electrons
200
What is a common source of heat?
carbon
200
What is NaCl
sodium chloride or table salt
200
When is an ionic bond formed?
when electrons are transferred
300
What is an ionic compound?
What compound formed from ions
300
What is a covalent compound?
a compound held together by covalent bonds
300
When does carbon dioxide form dry ice?
when it goes from a gas to a solid
300
What is the octet rule?
an atom becomes stable by having eight electrons in it outer level
300
When is a covalent bond formed?
when electrons are shared
400
What is a structural form do ionic compounds have?
crystals
400
How many bonds can covalent compounds have?
single, double, and triple
400
What is organic chemistry?
study of all things carbon
400
What is noble gas configuration?
elements become stable by achieving the same configuration of valence electrons as one of the noble gases
400
What is a regular repeating patterned structure?
crystal
500
Why can ionic crystals shatter easily?
They are very hard and brittle
500
What is the attractive force between molecules?
interparticle force
500
What is the universal solvent?
water
500
What group is called noble gases?
group 18
500
How many valence electrons does a stable atom have?
eight