Chemistry: Ionic Compounds
2-
Sulfur forms an ion with a charge of __________.
2+
Calcium forms an ion with a charge of __________.
chromium(III) chloride
Chromium and chlorine form an ionic compound whose formula is CrCl3. The name of this compound is __________.
Sc?
Element M reacts with fluorine to form an ionic compound with the formula MF3. The M-ion has 18 electrons. Element M is __________.
1-
Fluorine forms an ion with a charge of __________.
10
How many electrons does the Al3+ ion possess?
1-
Iodine forms an ion with a charge of __________.
Chalcogens
_________ typically form ions with a 2+ charge.
Many
Nonmetals have _________ valence electrons.
Fe2(SO4)3 iron(III) sulfide
Which formula/name pair is incorrect?
Cr2O3
Which one of the following compounds is chromium(III) oxide?
CuCl
Which one of the following compounds is copper(I) chloride?
3+
Aluminum forms an ion with a charge of __________.
6A (16)
Aluminum reacts with a certain nonmetallic element to form a compound with the general formula Al2X3. Element X must be from Group __________ of the Periodic Table of Elements.
nitrogen
Aluminum reacts with a certain nonmetallic element to form a compound with the general formula AlX. Element X is a diatomic gas at room temperature. Element X must be ______.
Nonmetals; Metals
Anions tend to be _________ and cations tend to be __________.
Negative; positive
Anions tend to have a __________ charge and cations tend to have a __________ charge.
2+
Barium forms an ion with a charge of __________.
Na3X
Barium reacts with a polyatomic ion to form a compound with the general formula Ba3(X)2. What would be the most likely formula for the compound formed between sodium and the polyatomic ion X?
1-
Bromine forms an ion with a charge of __________.
Li2X
Magnesium reacts with a certain element to form a compound with the general formula MgX. What would the most likely formula be for the compound formed between Lithium and element X?
Few
Metals have _________ valence electrons.
Lose; gain
Metals tend to __________ electrons and nonmetals tend to __________ electrons.
PCl5
Of the choices below, which one is not an ionic compound?
2-
Oxygen forms an ion with a charge of __________.
3-
Predict the charge of the most stable ion of P.
2-
Predict the charge of the most stable ion of S
CaF2
Predict the formula of the ionic compound that forms from Calcium and Fluorine.
Al2O3
Predict the formula of the ionic compound that forms from aluminum and oxygen.
MgF2
Predict the formula of the ionic compound that forms from magnesium and fluorine.
MgO
Predict the formula of the ionic compound that forms from magnesium and oxygen.
1+
Sodium forms an ion with a charge of __________.
barium, Chlorine
Which pair of elements is most likely to form an ionic compound with each other?
+3
The charge on the iron ion in the salt Fe2O3 is __________.
3+
The charge on the manganese in the salt MnCl3 is __________.
FeBr3
The correct formula of iron(III) bromide is __________.
Aluminum Oxide
The correct name for Al2O3 is __________.
Copper (II) cyanide
The correct name for Cu(CN)2 is __________.
Potassium Sulfide
The correct name for K2S is __________.
magnesium chlorate
The correct name for Mg(ClO3)2 is __________.
magnesium fluoride
The correct name for MgF2 is __________.
Sodium peroxide
The correct name for Na2O2 is _________.
Strontium Oxide
The correct name for SrO is __________.
Sodium Nitride
The correct name of the compound Na3N
Ag
The formula for a salt is XBr. The X-ion in this salt has 46 electrons. The metal X is ____.
Al(OH)3
The formula for aluminum hydroxide is __________.
(NH4)2CO3
The formula of ammonium carbonate is __________.
Ca3(PO4)2
The ions Ca2+ and PO43- form a salt with the formula __________.
ammonium phosphate
The name of the ionic compound (NH4)3PO4 is __________.
ions that consist of more than one atom
What are Polyatomic Ions?
The inner electrons (same e- configuration as the previous noble gas)
What are core electrons?
typically between a metal and a non-metal Bonds where a positively charged ion (cation) is attracted to a negatively charged ion (anion)
What are ionic compounds?
- Look at the period number - Add up the number of s and p electrons at the highest energy level
What are two ways that you can check the number of valence electrons for representative elements?
electrons that occupy the highest principle energy level; atom's outermost electron
What are valence electrons?
Halogens
What group in the periodic table would the fictitious element be found?
A way of keeping track of valence electrons.
What is an Electron Dot Diagram?
(NH4)2S
What is the correct formula for ammonium sulfide?
Sr3N2
What is the formula of the compound formed between strontium ions and nitrogen ions?
N3-
What is the nitride ion?
Octet Rule: states that every atom wants to have eight valence electrons in its outermost electron shell (noble gases have 8 valence electrons) Duet Rule: For the first 5 elements, they are most stable when the 1s orbital is filled with 2 electrons
What's the Octet Rule and Duet rule?
Metal; Nonmetal
When a metal and a nonmetal react, the __________ tends to lose electrons and the __________ tends to gain electrons.
CaS
When calcium reacts with sulfur the compound formed is __________.
Mg3N2 magnesium nitrite
Which formula/name pair is incorrect?
Sn
Which metal is capable of forming more than one cation?
Ca
Which metal is not required to have its charge specified in the names of ionic compounds it forms?
CaO
Which of the following compounds would you expect to be ionic?
SrCl2
Which of the following compounds would you expect to be ionic?