Question
Based on the naming rules for ions, which of the following is a negatively charged ion (not a polyatomic ion)?(1 point)
Responses
chlorate
chlorate
chlorine
chlorine
chlorite
chlorite
chloride
chloride
Ions Quick Check
2 of 52 of 5 Items
Question
When moving across a period from left to right in the periodic table (excluding transition elements) which trend occurs?(1 point)
Responses
Valence electrons increase by one.
Valence electrons increase by one.
The energy levels increase by one.
The energy levels increase by one.
Valence electrons decrease by one.
Valence electrons decrease by one.
The energy levels decrease by one.
The energy levels decrease by one.
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Ions Quick Check
3 of 53 of 5 Items
Question
Name the ionic compound represented by the following chemical formula: CuO. (1 point)
Responses
copper (II) oxide
copper (II) oxide
copper (II) oxygen
copper (II) oxygen
copper dioxide
copper dioxide
copper oxide
Which of the following comes first in the name of an ionic compound?(1 point)
Responses
the positively charged ion
the positively charged ion
the negatively charged ion
the negatively charged ion
the neutral ion
the neutral ion
the number of ions present
Write the chemical formula of the ionic compound magnesium chlorate. The magnesium (Mg
) ion has a +2
charge. Chlorate (ClO3
) has a −1
charge.(1 point)
Responses
Mg(ClO3)
m g open paren c l o sub 3 close paren
Mg2(ClO3)
Mg sub 2 open paren ClO sub 3 close paren
Mg2(ClO4)
Mg sub 2 open paren ClO sub 4 close paren
Mg(ClO3)
Responses
chlorate
chlorate
chlorine
chlorine
chlorite
chlorite
chloride
chloride
Ions Quick Check
2 of 52 of 5 Items
Question
When moving across a period from left to right in the periodic table (excluding transition elements) which trend occurs?(1 point)
Responses
Valence electrons increase by one.
Valence electrons increase by one.
The energy levels increase by one.
The energy levels increase by one.
Valence electrons decrease by one.
Valence electrons decrease by one.
The energy levels decrease by one.
The energy levels decrease by one.
Skip to navigation
Ions Quick Check
3 of 53 of 5 Items
Question
Name the ionic compound represented by the following chemical formula: CuO. (1 point)
Responses
copper (II) oxide
copper (II) oxide
copper (II) oxygen
copper (II) oxygen
copper dioxide
copper dioxide
copper oxide
Which of the following comes first in the name of an ionic compound?(1 point)
Responses
the positively charged ion
the positively charged ion
the negatively charged ion
the negatively charged ion
the neutral ion
the neutral ion
the number of ions present
Write the chemical formula of the ionic compound magnesium chlorate. The magnesium (Mg
) ion has a +2
charge. Chlorate (ClO3
) has a −1
charge.(1 point)
Responses
Mg(ClO3)
m g open paren c l o sub 3 close paren
Mg2(ClO3)
Mg sub 2 open paren ClO sub 3 close paren
Mg2(ClO4)
Mg sub 2 open paren ClO sub 4 close paren
Mg(ClO3)
Answers
GPT-4o mini
Let's go through each question one by one:
1. **Which of the following is a negatively charged ion (not a polyatomic ion)?**
- Options:
- chlorate
- chlorine
- chlorite
- chloride
- **Answer:** **chloride**. Chloride (Cl⁻) is a monatomic ion with a negative charge.
2. **When moving across a period from left to right in the periodic table (excluding transition elements) which trend occurs?**
- Options:
- Valence electrons increase by one.
- The energy levels increase by one.
- Valence electrons decrease by one.
- The energy levels decrease by one.
- **Answer:** **Valence electrons increase by one.** As you move from left to right, each element has one more valence electron than the one before it.
3. **Name the ionic compound represented by the following chemical formula: CuO.**
- Options:
- copper (II) oxide
- copper (II) oxygen
- copper dioxide
- copper oxide
- **Answer:** **copper (II) oxide.** Copper (Cu) has a +2 charge in this compound, so it is named copper (II) oxide.
4. **Which of the following comes first in the name of an ionic compound?**
- Options:
- the positively charged ion
- the negatively charged ion
- the neutral ion
- the number of ions present
- **Answer:** **the positively charged ion.** In the naming of ionic compounds, the cation (positively charged ion) is named first.
5. **Write the chemical formula of the ionic compound magnesium chlorate. The magnesium (Mg) ion has a +2 charge. Chlorate (ClO3) has a −1 charge.**
- Options:
- Mg(ClO3)
- Mg2(ClO3)
- Mg2(ClO4)
- Mg(ClO3)
- **Answer:** **Mg(ClO3)2.** Since magnesium has a +2 charge and each chlorate has a -1 charge, you need two chlorate ions to balance the charge of one magnesium ion. The correct formula would be written as Mg(ClO3)2, but since that specific option is not listed, it seems the closest representation would follow the standard charges, so **Mg(ClO3)** alone wouldn’t balance out unless corrected to reflect the two needed chlorate ions, suggesting an oversight in provided answers.
Please let me know if you need more clarification on each or if you have additional questions!
1. **Which of the following is a negatively charged ion (not a polyatomic ion)?**
- Options:
- chlorate
- chlorine
- chlorite
- chloride
- **Answer:** **chloride**. Chloride (Cl⁻) is a monatomic ion with a negative charge.
2. **When moving across a period from left to right in the periodic table (excluding transition elements) which trend occurs?**
- Options:
- Valence electrons increase by one.
- The energy levels increase by one.
- Valence electrons decrease by one.
- The energy levels decrease by one.
- **Answer:** **Valence electrons increase by one.** As you move from left to right, each element has one more valence electron than the one before it.
3. **Name the ionic compound represented by the following chemical formula: CuO.**
- Options:
- copper (II) oxide
- copper (II) oxygen
- copper dioxide
- copper oxide
- **Answer:** **copper (II) oxide.** Copper (Cu) has a +2 charge in this compound, so it is named copper (II) oxide.
4. **Which of the following comes first in the name of an ionic compound?**
- Options:
- the positively charged ion
- the negatively charged ion
- the neutral ion
- the number of ions present
- **Answer:** **the positively charged ion.** In the naming of ionic compounds, the cation (positively charged ion) is named first.
5. **Write the chemical formula of the ionic compound magnesium chlorate. The magnesium (Mg) ion has a +2 charge. Chlorate (ClO3) has a −1 charge.**
- Options:
- Mg(ClO3)
- Mg2(ClO3)
- Mg2(ClO4)
- Mg(ClO3)
- **Answer:** **Mg(ClO3)2.** Since magnesium has a +2 charge and each chlorate has a -1 charge, you need two chlorate ions to balance the charge of one magnesium ion. The correct formula would be written as Mg(ClO3)2, but since that specific option is not listed, it seems the closest representation would follow the standard charges, so **Mg(ClO3)** alone wouldn’t balance out unless corrected to reflect the two needed chlorate ions, suggesting an oversight in provided answers.
Please let me know if you need more clarification on each or if you have additional questions!