| Forming Simple Ions | ||
| #1 | Metal atoms lose valence electrons to form cations or anions? | cations |
| #2 | Nonmetal atoms gain valence electrons to form cations or anions? | anions |
| #3 | How many valence electrons does a calcium atom have. | two valence electrons |
| #4 | How many valence electrons does a sulfide ion have? | eight valence electrons |
| #5 | How many valence electrons does a selenium atom accept to become a selenide ion? | two valence electrons |
| Polyatomic Ions | ||
| #1 | What is the name for the polyatomic ion OH- ? | hydroxide ion |
| #2 | What is the name for the polyatomic ion CN- ? | cyanide ion |
| #3 | What is the net charge on a sulfate polyatomic ion? | net charge is 2- |
| #4 | What is the charge on an ammonium ion? | net charge is 1+ |
| #5 | The bonds within a polyatomic ion are ionic or covalent? | covalent |
| Ionic Compounds | ||
| #1 | What bonds ionic compounds together? | Attraction between opposite charges of cations and anions |
| #2 | What is the name of the ionic compound NaBr? | sodium bromide |
| #3 | What is the name of the ionic compound MgCl2? | magnesium chloride |
| #4 | What is the chemcial formula for the ionic compound formed by potassium and iodine? | KI |
| #5 | What is the chemcial formula of the ionic compound formed by iron(II) and chlorine? | Fe(II))Cl2 |
| Covalent Bonds | ||
| #1 | Covalent compounds form by exchanging or sharing valence electrons? | sharing valence electrons |
| #2 | What is the name for a pair of valence electons shared between two atoms in a covalent compound? | bonding pair |
| #3 | What is the name for a pair of valence electrons not shared between atoms in a covalent compound? | unshared pair or lone pair |
| #4 | What is the name for the bond when two covlently bonded atoms share two pairs of valence electrons? | double bond |
| #5 | What is the name for the bond when two covlently bonded atoms share three pairs of valence electrons? | triple bond |
| Covalent Compounds | ||
| #1 | What is the chemical formula when two carbon atoms are covalently bonded to 4 hydrogen atoms? | C2H4 |
| #2 | What is the name of a covalent compound with the chemical formula NO ? | nitrogen monoxide |
| #3 | What is the name of the covalent compound with the chemcial formula N2O2 ? | dinitrogen dioxide |
| #4 | What is the name of the covalent compound with the chemcial formula SCl6 ? | sulfur hexachloride |
| #5 | In a covalent compound with two types of elements, what property is used to determine which element comes first in the name and chemical formula? | electronegativity |
| Final Question | |
| Draw the Lewis structure for the polyatomic ions ammonium and phosphate. Then write the formula for the ionic compound formed between the two. | (NH4)3(PO4) |