Question | Answer |
What kind of compound usually forms between two nonmetals? | molecular |
What kind of compound usually forms between a metal and a nonmetal? | ionic |
Metals tend to do what with electrons and become what kind of charged particle? | lose; cation |
Nonmetals tend to do what with electrons and become what kind of charged particle? | gain; anion |
Do you use number prefixes for ionic compounds? | no |
Do you use number prefixes for molecular compounds? | yes |
What is the charge of an ion from Group 1? | +1 |
What is the charge of an ion from Group 2? | +2 |
What is the charge of an ion from Group 3? | +3 |
What is the charge of the silver (Ag) ion? | +1 |
What is the charge of the zinc (Zn) ion? | +2 |
What is the charge of the aluminum (Al) ion? | +3 |
Ionic Compounds:
For transition metals, you use what to indicate the charge of the ion? | Roman numerals |
What is the charge of an ion from Group 15? | -3 |
What is the charge of an ion from Group 16? | -2 |
What is the charge of an ion from Group 17? | -1 |
Ionic Compounds:
When naming, what do you change the element ending of the second element to? | "ide" |
To name an ionic compound, which ion do you name first? | the cation |
To name an ionic compound, which ion do you name last? | the anion |
The overall formula for an ionic compound must be what? | electrically neutral. That is, the number of positive charges must equal the number of negative charges |
In what instance when writing the formula for an ionic compound do you use parentheses? | You use parentheses only if you have more than one of a polyatomic ion. |
To name a molecular compound, what do you name first? | the more positive element |
To name a molecular compound, what do you name last? | the more negative element |
Do you use the "mono" prefix for molecular compounds in which there is only one of the first element? | no |
What should you name compounds whose first element is hydrogen like? | ionic compounds |
What will an acid consist of? | any anion with enough hydrogen for neutrality |
If the acid is formed from an anion ending in "ide", how should you name the acid? | hydro -ic acid |
If the acid is formed from an anion ending in "ate", how should you name the acid? | -ic acid |
If the acid is formed from an anion ending in "ite", how should you name the acid? | -ous acid |
What are the seven diatomic molecules? | hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, iodine |