WorksheetsChem unit 3
Total questions: 23
Worksheet time: 12mins
an ionic compound is made up of
metals and nonmetals
metals and transition elements
metals and metals
non metals and non metals
a covalent compound is made up of
metals and nonmetals
metals and transition elements
metals and metals
non metals and non metals
Ionic compounds form when metal and nonmetal elements
give electrons
transfer electrons
share electrons
make electrons
Covalent compounds form when nonmetal elements
give electrons
transfer electrons
share electrons
make electrons
Covalent elements share electrons have
10 valence electrons
4 valence electrons
8 valence electrons
7 valence electrons
cations are
positively charged metal ions that have lost electrons
positively charged metal ions that have gained electrons
negatively charged non metal ions that have gained electrons
negatively charged non metal ions that have lost electrons
anions are
positively charged metal ions that have lost electrons
positively charged metal ions that have gained electrons
negatively charged non metal ions that have gained electrons
negatively charged non metal ions that have lost electrons
what are valence electrons
an atom with 8 valence electrons. a negatively charged non metal atom that has gained electrons
an atom that has gained or lost electrons and now has a charge
a small number in a chemical formula that represents the number of atoms in a compound
the electrons in an atom that are the furthest away from the nucleus, they are responsible for bonding
what is an octet
an atom with 8 valence electrons. a negatively charged non metal atom that has gained electrons
an atom that has gained or lost electrons and now has a charge
a small number in a chemical formula that represents the number of atoms in a compound
the electrons in an atom that are the furthest away from the nucleus, they are responsible for bonding
what is an ion
an atom with 8 valence electrons. a negatively charged non metal atom that has gained electrons
an atom that has gained or lost electrons and now has a charge
a small number in a chemical formula that represents the number of atoms in a compound
the electrons in an atom that are the furthest away from the nucleus, they are responsible for bonding
what is a subscript
an atom with 8 valence electrons. a negatively charged non metal atom that has gained electrons
an atom that has gained or lost electrons and now has a charge
a small number in a chemical formula that represents the number of atoms in a compound
the electrons in an atom that are the furthest away from the nucleus, they are responsible for bonding
how do you write the equation for
Fe+2 Br-1
Fe2Br
FeBr2
Br2Fe
Fe1Br2
how do you write the equation for
Pb+4 CO3-2
Pb(CO3)2
Lead (IV) Carbonate
Pb4(CO3)2
Pb2(CO3)4
what is the formula for nickel (I) hydroxide
N1OH
NOH
NiOH
Ni1OH
what is the name of the covalent compound
NI3
nitrogen triodide
nitrogen triiodine
nitrogen triiodide
nitrogen tetraiodide
what is the name for BF4
Boron tetrafluoride
tetraboron fluoride
Boron tetra fluorine
Boron pentafluoride
prefixes occur in front of
ionic compounds
covalent compounds
all ions
subscripts
which polyatomic ion is this
NH₄+1
sulfate
phosphate
carbonate
ammonium
which polyatomic ion is this
CO3-2
sulfate
phosphate
carbonate
ammonium
which polyatomic ion is this
PO4-3
sulfate
phosphate
carbonate
ammonium
which polyatomic ion is this
SO4-4
sulfate
phosphate
carbonate
ammonium
which polyatomic ion is this
NO3
hydroxide
phosphate
nitrate
ammonium
which polyatomic ion is this
OH-1
hydroxide
phosphate
nitrate
ammonium
