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Worksheets7th Grade Chapter 2 Vocabulary
Total questions: 19
Worksheet time: 5hrs 31mins
The _____________ electrons of an atom are those electrons that have the highest energy.
chemical
valence
carbon
smallest
A(n) ____________________ includes the symbol for the element surrounded by dots
electron dot diagram
energy dot diagram
chemical bond diagram
electron chemical diagram
A ___________ bond is the force of attraction that holds atoms together as a result of the rearrangement of electrons between them.
chemistry
carbon
chemical
metalloid
A(n) ________ is an atom or group of atoms that has an electric charge.
ion
metalloid
valance
bond
Ions that are made of more than 1 atom are called ________________ ions.
multiatomic
polyatomic
positive atomic
negative atomic
A(n) ____________ bond is the attraction between two oppositely charged ions.
chemical
common
ionic
extended
A(n) __________ compound is made up of positive and negative ions.
ionic
multi-atomic
polyatomic
neutral
A _____________ formula is a group of symbols that show the ratio of elements in a compound.
chemistry
balanced
chemical
ionic
_______________ tell the ratio of elements in a compound.
Subscripts
Coefficients
Superscripts
Symbols
Ions form an orderly, three-dimensional arrangement called a ______________.
compound
covalent
crystal
cube
When 2 atoms share electrons, it is called a ______________ bond.
chemical
covalent
ionic
molecular
A(n) ______________ is a neutral group of atoms joined by covalent bonds.
ion
molecule
compound
electron
When 2 atoms share 2 pairs of electrons, they form a ___________ bond.
single
double
triple
polar
Atoms of some elements , such as nitrogen can share 3 pairs of electrons forming a ____________ bond.
single
double
triple
polar
A ____________ compound is a compound that is made up of molecules.
molecular
polar
ionic
nonpolar
A covalent bond in which electrons are shared equally is a ____________ bond.
polar
ionic
nonpolar
molecular
A ____________ bond is an attraction between a positive metal ion and the electrons surrounding it.
metallic
polar
molecular
nonpolar
An _________ is a mixture made of two or more elements, at least one of which is a metal.
atom
alloy
electron
ion
A covalent bond in which electrons are shared unequally is a __________ bond.
nonpolar
polar
molecular
ionic
