Ion Basics
What is an ion?
A charged atom that has gained or lost electrons
What is the name for NaCl?
Sodium chloride
What is the formula for calcium and chlorine?
CaCl₂
Name a polyatomic ion with a -1 charge
Nitrate (NO₃⁻)
What does a Lewis dot structure show?
Valence electrons
What is a cation?
A positively charged ion formed by losing electrons.
What is the name for FeCl₂?
Iron (II) chloride
What is the formula for potassium and bromine?
KBr
What is the formula for ammonium chloride?
NH₄Cl
How many valence electrons does chlorine have?
7
What is an anion?
A negatively charged ion formed by gaining electrons.
What is the name for Mg(NO₃)₂?
Magnesium nitrate
What is the formula for aluminum and oxygen?
Al₂O₃
What is the name for Na₂SO₄?
Sodium sulfate
In the Lewis structure for NaCl, which atom loses an electron?
Sodium
What is the oxidation number of a group 1 element?
+1
What is the name for SnCl₄?
Tin (IV) chloride
What is the formula for barium sulfate?
BaSO₄
What is the formula for calcium phosphate?
Ca₃(PO₄)₂
How many electrons are transferred in the Lewis structure for MgO?
2
Which element forms a 3+ ion?
Aluminum
What is the name for MnO₂?
Manganese (IV) oxide
What is the formula for iron (II) oxide?
FeO
What is the name for (NH₄)₃PO₄?
Ammonium phosphate
How many electrons are transferred in the Lewis structure for Al₂O₃?
6