Podcast
Questions and Answers
What can Nate do so that both Nate and Clara have a full set of markers?
What can Nate do so that both Nate and Clara have a full set of markers?
Nate has to give one marker to Clara.
How can Maggie, Fred, and Florence share their markers so each has 8?
How can Maggie, Fred, and Florence share their markers so each has 8?
Maggie will have to give one marker to Florence and Fred.
How many valence electrons does sodium have?
How many valence electrons does sodium have?
1
How many valence electrons does chlorine have?
How many valence electrons does chlorine have?
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Which atom is a metal?
Which atom is a metal?
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Which atom is a nonmetal?
Which atom is a nonmetal?
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What happens when an electron is moved from sodium to chlorine?
What happens when an electron is moved from sodium to chlorine?
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How many total electrons are in sodium assuming the inner rings are full?
How many total electrons are in sodium assuming the inner rings are full?
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How many total electrons are in chlorine assuming the inner rings are full?
How many total electrons are in chlorine assuming the inner rings are full?
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How many protons are in sodium if it has 11 electrons?
How many protons are in sodium if it has 11 electrons?
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How many protons are in chlorine if it has 17 electrons?
How many protons are in chlorine if it has 17 electrons?
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How many valence electrons does sodium have according to the octet rule?
How many valence electrons does sodium have according to the octet rule?
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How many valence electrons does chlorine have according to the octet rule?
How many valence electrons does chlorine have according to the octet rule?
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What is the charge of sodium after moving an electron to chlorine?
What is the charge of sodium after moving an electron to chlorine?
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What is the charge of chlorine after receiving an electron from sodium?
What is the charge of chlorine after receiving an electron from sodium?
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Study Notes
Sharing Markers
- Nate has 9 markers, Clara has 7; to have a full set of 8, Nate gives 1 marker to Clara.
- Maggie has 10 markers, Fred and Florence each have 7; to equal 8 markers for all, Maggie gives 1 marker each to Fred and Florence.
Valence Electrons
- Sodium has 1 valence electron, while chlorine has 7 valence electrons.
- Generally, atoms with stable configurations have a full set of 8 valence electrons, following the octet rule.
Atomic Composition
- Sodium atom contains a total of 11 electrons; thus, it has 11 protons, making it neutrally charged.
- Chlorine atom comprises 17 electrons, therefore it has 17 protons, also neutrally charged.
Ion Formation
- When an electron is transferred from sodium (metal) to chlorine (nonmetal), sodium becomes a positive ion (1+) and chlorine becomes a negative ion (1-).
Element Classification
- Sodium is categorized as a metal.
- Chlorine is identified as a nonmetal.
Charge Calculation
- The charge of an atom can be calculated by subtracting the number of electrons from the number of protons.
- After transferring an electron, sodium’s charge is 1+ and chlorine’s charge is 1-.
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Description
This quiz covers fundamental concepts in chemistry, focusing on atomic composition, valence electrons, and ion formation. It will help reinforce knowledge about element classification and the charge of atoms. Perfect for beginners and students learning chemistry concepts.
