Podcast
Questions and Answers
Which of the following ions has a positive valency of 2?
Which of the following ions has a positive valency of 2?
- Plumbous ($Pb^{2+}$) (correct)
- Aluminium ($Al^{3+}$)
- Stannic ($Sn^{4+}$)
- Ammonium ($NH_4^+$)
Which of the following pairs of ions have the same positive valency?
Which of the following pairs of ions have the same positive valency?
- Stannic ($Sn^{4+}$) and Aluminum ($Al^{3+}$)
- Lithium ($Li^+$) and Magnesium ($Mg^{2+}$)
- Cupric ($Cu^{2+}$) and Auric ($Au^{3+}$)
- Ferrous ($Fe^{2+}$) and Plumbous ($Pb^{2+}$) (correct)
What is the chemical formula for the bisulphate ion?
What is the chemical formula for the bisulphate ion?
- $HSO_3^-$
- $HS^-$
- $HSO_4^-$ (correct)
- $H_2SO_4$
Which of the following ions has a negative valency of 3?
Which of the following ions has a negative valency of 3?
Which of the following is the correct symbol for the stannate ion?
Which of the following is the correct symbol for the stannate ion?
Which of the following is the chemical formula for the cupric ion?
Which of the following is the chemical formula for the cupric ion?
What is the symbol for the argentous ion?
What is the symbol for the argentous ion?
What is the chemical formula for the dichromate ion?
What is the chemical formula for the dichromate ion?
Which of the following ions has a positive charge of +3?
Which of the following ions has a positive charge of +3?
Which of the following is the formula for the permanganate ion?
Which of the following is the formula for the permanganate ion?
Which ion is represented by the formula $PO_4^{3-}$?
Which ion is represented by the formula $PO_4^{3-}$?
Which of the following ions is correctly matched with its symbol?
Which of the following ions is correctly matched with its symbol?
Identify the ion that has a -2 charge.
Identify the ion that has a -2 charge.
Which of the following represents a negative valency of 4?
Which of the following represents a negative valency of 4?
What is the chemical symbol for the 'aurous' ion of gold?
What is the chemical symbol for the 'aurous' ion of gold?
Which of the following is the correct formula for the silicate ion?
Which of the following is the correct formula for the silicate ion?
Which of the following ions has a +4 charge?
Which of the following ions has a +4 charge?
Which of the following ions does NOT have a single negative charge?
Which of the following ions does NOT have a single negative charge?
Which of the following is the formula for the acetate ion?
Which of the following is the formula for the acetate ion?
Flashcards
What is NH4+?
What is NH4+?
Ammonium ion, a positively charged polyatomic ion.
What is H+?
What is H+?
Hydrogen ion, a positively charged ion of hydrogen.
What is Li+?
What is Li+?
Lithium ion, used in batteries and mood stabilizers.
What is Na+?
What is Na+?
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What is K+?
What is K+?
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What is Cu+?
What is Cu+?
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What is Ag+?
What is Ag+?
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What is Hg+?
What is Hg+?
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What is Au+?
What is Au+?
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What is Mg2+?
What is Mg2+?
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What is Ca2+?
What is Ca2+?
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What is Zn2+?
What is Zn2+?
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What is Ba2+?
What is Ba2+?
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What is Al3+?
What is Al3+?
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What is Cr3+?
What is Cr3+?
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What is F-?
What is F-?
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What is Cl-?
What is Cl-?
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What is Br-?
What is Br-?
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What is I-?
What is I-?
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What is OH-?
What is OH-?
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Study Notes
- This is a list of common ions with their positive and negative valencies, along with their symbols
Positive Valency 1
- Ammonium: NH₄⁺
- Hydrogen: H⁺
- Lithium: Li⁺
- Sodium: Na⁺
- Potassium: K⁺
- Cuprous [Copper (I)]: Cu⁺
- Argentous [Silver (I)]: Ag⁺
- Mercurous [Mercury (I)]: Hg⁺
- Aurous [Gold (I)]: Au⁺
Positive Valency 2
- Magnesium: Mg²⁺
- Calcium: Ca²⁺
- Zinc: Zn²⁺
- Barium: Ba²⁺
- Nickel: Ni²⁺
- Uranium: U²⁺
- Cupric [Copper (II)]: Cu²⁺
- Argentic [Silver (II)]: Ag²⁺
- Mercuric [Mercury (II)]: Hg²⁺
- Ferrous [Iron (II)]: Fe²⁺
- Plumbous [Lead (II)]: Pb²⁺
- Stannous [Tin (II)]: Sn²⁺
- Platinous [Platinum (II)]: Pt²⁺
Positive Valency 3
- Aluminum: Al³⁺
- Chromium: Cr³⁺
- Bismuth: Bi³⁺
- Arsenic: As³⁺
- Ferric [Iron (III)]: Fe³⁺
- Auric [Gold (III)]: Au³⁺
Positive Valency 4
- Stannic [Tin (IV)]: Sn⁴⁺
- Plumbic [Lead (IV)]: Pb⁴⁺
- Platinic [Platinum (IV)]: Pt⁴⁺
Ions with Negative Valency
- List of ions with negative valencies
Negative Valency 1
- Fluoride: F⁻
- Chloride: Cl⁻
- Bromide: Br⁻
- Iodide: I⁻
- Hypochlorite: ClO⁻
- Chlorate: ClO₃⁻
- Bicarbonate or hydrogen carbonate: HCO₃⁻
- Bisulphite or hydrogen sulphite: HSO₃⁻
- Bisulphide or hydrogen sulphide: HS⁻
- Bisulphate or hydrogen sulphate: HSO₄⁻
- Hydride: H⁻
- Hydroxide: OH⁻
- Aluminate: AlO₂⁻
- Permanganate: MnO₄⁻
- Cyanide: CN⁻
- Nitrite: NO₂⁻
- Nitrate: NO₃⁻
- Acetate: CH₃COO⁻
Negative Valency 2
- Sulphate: SO₄²⁻
- Sulphite: SO₃²⁻
- Sulphide: S²⁻
- Thiosulphate: S₂O₃²⁻
- Zincate: ZnO₂²⁻
- Plumbate: PbO₂²⁻
- Oxide: O²⁻
- Peroxide: O₂²⁻
- Manganate: MnO₄²⁻
- Dichromate: Cr₂O₇²⁻
- Carbonate: CO₃²⁻
- Silicate: SiO₃²⁻
- Stannate: SnO₃²⁻
- Oxalate: (COO)₂²⁻
Negative Valency 3
- Nitride: N³⁻
- Phosphide: P³⁻
- Phosphite: PO₃³⁻
- Phosphate: PO₄³⁻
Negative Valency 4
- Carbide: C⁴⁻
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