FLC CHEM 305: Electronegativity, Diatomics, Ions, the Octet Rule, Avogadro's Number, and Moles
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72 Terms
A difference of electronegativity from 0 to 0.4 indicates a _______ bond with equal/near equal electron sharing
Nonpolar covalent
An electronegativity difference between 0.4 and 1.5 indicates a _____ bond with unequal electron sharing.
Polar covalent
An electronegativity difference between 1.5 and 2.0 indicates an _____ or _______ covalent bond depending on whether a metal is present or not.
ionic, polar
Any electronegativity difference beyond 2.0 indicates an _____ bond with highly unequal electron sharing (electron transfer)
ionic
Oxygen, Hydrogen, and the Halogens (F, Cl, Br, and I) are all what?
diatomic elements
A Bromine ion is called ____ and has a charge of ____
bromide, -1
A carbon ion is called ____ and has a charge of ____
Carbide, -4
A chlorine ion is called ____ and has a charge of ____
chloride, -1
A fluorine ion is called ____ and has a charge of ____
fluoride, -1
a hydrogen ion is called ____ and has a charge of ___
hydride, -1
an iodine ion is called ____ and has a charge of ____
iodide, -1
a nitrogen ion is called ____ and has a charge of _____
nitride, -3
an oxygen ion is called _____ and has a charge of _____
oxide, -2
a phosphorus ion is called _____ and has a charge of ____
phosphide, -3
a sulfur ion is callled ____ and has a charge of ____
sulfide, -2
Elements in group 1A (1) have ions with a charge of ____
+1
Elements in group 2A (2) have ions with a charge of ____
+2
Elements in group 3A (13) have a charge of ___
+3
A copper (I) ion has a charge of ____
+1
A silver ion has a charge of _____
+1
An ammonium ion (NH4) has a charge of ____
+1
A hydrogen ion has a charge of ____
+1
A hydronium ion (H3O) has a charge of ____
+1
A chromium (II) ion has a charge of ____
+2
a manganese (II) ion has a charge of ____
+2
An iron (II) ion has a charge of ____
+2
A cobalt (II) ion has a charge of ____
+2
A Nickel (II) ion has a charge of ___
+2
A copper (II) ion has a charge of ____
+2
A zinc ion has a charge of ____
+2
A cadmium (Cd) ion has a charge of ____
+2
A mercury (I) ion (Hg2) has a charge of ____
+2
A mercury (II) ion (Hg) has a charge of ____
+2
A lead (II) ion has a charge of ____
+2
A lead (IV) ion has a charge of _____
+4
An aluminum ion has a charge of _____
+3
A gallium (Gn) ion has a charge of ____
+3
A Chromium (III) ion has a charge of ____
+3
A manganese (III) ion has a charge of _____
+3
An iron (III) ion has a charge of ____
+3
A cobalt (III) ion has a charge of ____
+3
A tin (IV) ion has a charge of ____
+4
A lithium ion has a charge of _____
+1
A sodium ion has a charge of ____
+1
A potassium ion has a charge of ____
+1
A rubidium ion has a charge of _____
+1
A Cesium ion has a charge of ____
+1
A Beryllium ion has a charge of ____
+2
A magnesium ion has a charge of _____
+2
A calcium ion has a charge of ____
+2
A strontium ion has a charge of _____
+2
A barium ion has a charge of _____
+2
A nitrate ion (NO3) has a charge of ____
-1
A sulfate ion (SO4) has a charge of ____
-2
A hydrogen sulfate or bisulfate ion (HSO4) has a charge of ____
-1
A phosphate ion (PO4) has a charge of ____
-3
A Hydrogen phosphate ion (HPO4) has a charge of ____
-2
A dihydrogen phosphate ion (H2PO4) has a charge of ____
-1
A carbonate ion (CO3) has a charge of ____
-2
A hydrogen carbonate or bicarbonate ion (HCO3) has a charge of ____
-1
A Cyanide ion (CN) has a charge of ____
-1
A hydroxide ion (OH) has a charge of ____
-1
Molecules with more than eight electrons around the central atom like PF5 are exceptions to?
the octet rule
Odd-electron molecules like NO are exceptions to?
the octet rule
Molecules with fewer than eight electrons around the central atom are exceptions to?
the octet rule
Oxygen is an exception to?
the octet rule
Avogadro’s number is?
6.022E23
1 mole of any substance is?
6.022E23 of that substance
The mass of 1 mole of atoms, molecules, or formula units in grams is equal to
the mass number
Ion
An atom or molecule with a net electrical charge.
Cation
A positively charged ion
Anion
A negatively charged ion
Note 
Flashcards (106)