QQuestionChemistry
QuestionChemistry
How many valence electrons does magnesium have?
Type in the correct values to represent the valence electron configuration.
A. __________
B. __________
What is the charge of a magnesium ion?
A. __________
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Answer
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Step 1:I'll solve this step by step, focusing on magnesium's electron configuration and valence electrons.
Step 2:: Determine Magnesium's Atomic Number and Position
- Magnesium (Mg) is located in Period 3, Group 2 of the periodic table - Its atomic number is 12
Step 3:: Write Out Electron Configuration
- Full electron configuration of magnesium: $$1s^{2} 2s^{2} 2p^{6} 3s^{2}
Step 4:: Identify Valence Electrons
- For magnesium, these are the $$3s^{2}$$ electrons
- Valence electrons are those in the outermost shell - Number of valence electrons = 2
Step 5:: Determine Ion Charge
- When it loses 2 electrons, it becomes a $$Mg^{2+}$$ ion
- Magnesium tends to lose its 2 valence electrons to achieve a stable electron configuration
Final Answer
A. Valence electron configuration: 3s^{2} B. Number of valence electrons: 2 Magnesium ion charge: 2 +
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