Vocab
Cation
positive ion
Cations have a _____ charge, and anions have a ______ charge.
positive, negative
potassium telluride
K2Te
What resource should I utilize on my test for naming, finding formulas, and finding charges for polyatomic ions?
My table of polyatomic ions! I can use it on any test or quiz.
Ionic Bond
the attraction between oppositely charged ions (cations and anions) to form ionic compounds
cations are typically found on the ____ side of the PT, and anions are typically found on the _____ side of the PT.
left, right
If you are having trouble naming ionic compounds, when can you come to tutoring before your test?
TODAY AFTER SCHOOL!!!!!!!!!!
TRUE or FALSE: the two polyatomic ions ammonium and hydronium can form an ionic bond.
FALSE; both positive
multivalent
can exist with multiple positive or negative charges depending on what compound it is in
What is the name of this ion?
Se2-
selenide ion
copper (III) flouride
zinc (II) bromide
ZnBr2
To name a multivalent ion, we MUST include what?
Roman Numerals!
Octet Rule
main group elements tend to form chemical bonds to receive an octet of eight valence electrons to become more stable
Cations typically have ____ electronegativity, while anions typically have ____ electronegativity
low, high
Mg(NO3)2
magnesium nitrate
ammonium pyrophosphate
(NH4)4P2O7
What are the names of the polyatomic ions found in this compound?
H3OC6H5COO
hydronium and hydrogen sulfite
Electronegativity
how strongly atoms attract electrons
What is the charge on ONE silver in this compound:
Ag3(AsO3)2
2+
(You need to have said the POSITIVE to receive full credit!)
Cr2(HPO4)
chromium (I) monohydrogen phosphate
titanium (III) dihydrogen phosphate
Ti(H2PO4)3
Multivalent ions are possible because the atoms typically have valence electrons in the "__" or "__" subshells.
d, f