Chapter 5.1 – Flashcards
Unlock all answers in this set
Unlock answers| Substances composed of 2 or more different ELEMENTS that are chemically combined are... |
Compounds |
Ionic compounds are formed by ____________ and ____________ combining |
metals + nonmetals |
| The lowest whole number ratio of ions in an ionic compound is known as the... |
| Formula Unit |
| Shows the kinds and numbers of atoms present in the smallest representative unit of a substance... |
| Chemical Formula |
| Shows the kinds and numbers of atoms in a Molecule of a Molecular Compound |
| Molecular Formula |
| Metallic elements ___________ electrons and form cations. |
| LOSE |
| What charge do cations have? |
positive charge
|
| If an element LOSES an electron, what type of charge does it have? |
| positive |
Nonmetallic elements tend to _________ electrons and form anions. |
| GAIN |
| What type of charge do anions have? |
negative charge
|
| What charge do group 1A elements have? |
| +1 |
| What charge do Group 2A elements have? |
| +2 |
| What charge do transition metals (the "B" Groups) have? |
| Charges VARY!! |
| What charge do group 3A elements have? |
| +3 |
| What charge do group 4A elements have? |
| Charges vary!! |
| What charge do group 5A elements have? |
| -3 |
| What charge do Group 6A elements have? |
| -2 |
| What charge do group 7A elements have? |
| -1 |
| What charge do group 8A elements have? |
| 0 |
| What is the charge for Phosphorous? |
| -3 |
| What is the charge for Neon? |
| 0 |
| What is the charge for Magnesium? |
| +2 |
A compound that is composed of 2 elements is known as a... |
| Binary Compound |
| When you are naming a BINARY ionic compound, which do you write first; the cation or the anion? |
| cation |
| How do you write the name for a BINARY ionic compound? |
Example: Sodium Chloride
|
Find the Formula AND Name for this compound
Na+S 2- |
Formula: Na2S
Name: Sodium sulfide |
Find the Formula AND Name for this compound
Fe2+Br - |
Formula: FeBr2
Name: Iron (II) bromide |
When do you need to use Roman Numeral Numbers? |
-When you are NAMING the groups where the charges VARY. (transition metals and group 4A)
Example: Iron (III) Chloride
DO NOT PUT roman numeral numbers in Formulas!!!! |
| What does a Roman Numeral Number represent? |
| The charge of the cation |
Write the formula for
Ca2+Br- |
| CaBr2 |
Write the Formula AND Name
W+6O2- |
Formula: W206 SIMPLIFY!! ------> DIVIDE BY 2 WO3 Name: Tungsten (VI) Oxide
|
Write the formula
Be+2P3- |
| Be3P2 |
Write the Formula and Name!
Fe3+ S2- |
Formula: simplify....Fe2S3
Name: Iron (III) sulfide |
Write the Name AND Chemical formula for this compound!
Co2+ F- |
Formula: CoF2
Name: Cobalt (II) Flouride |
| What type of compound is made from 3 or more different elements? |
| Ternary Ionic Compounds |
| Tightly bound groups of atoms that behave as a unit and carry a charge are known as... |
| Polyatomic Ions |
| How do you Name a TERNARY ionic compound? |
; |
| How do you write a formula for;a TERNARY ionic compound? |
Example: Ba+2;;;;;;;;; (SO4)-2 ;;;;;;;;;;;;;;;Ba(SO4) |
Write the Formula AND Name of this compound ; Al 3+ SO42- |
Formula: Al2(SO4)3 ; Name: Aluminum Sulfate |
Write the formula AND name of this compound ; Cr2+; ;PO43- |
Formula: Cr3(PO4)2 ; Name: Chromium (II) phosphate |
Write the formula AND name of this compound ; Fe2+ NO3- |
Formula:Fe3(NO3)2 ; Name: Iron (II) nitrate |
Write the formula AND name for this compound ; V3+; PO43- |
Formula: Simplfy....VPO4 ; Name: Vanadium (III) phosphate |
Is the following a Monoatomic Ion or a Polyatomic Ion? ; F- |
| F- = Monoatomic |
Is the following a Monoatomic Ion or a Polyatomic Ion? ; SO42- |
| Polyatomic |
Is the following a Binary or Ternary Compound? ; CaCl2 |
| Binary Compound |
Is the following a Binary or Ternary Compound? ; CaCO3 |
Ternary ; CaCO3 |
