- (a) Si (Silicon, Atomic Number 14)
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1s² 2s² 2p⁶ 3s² 3p²
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(b) Mg (Magnesium, Atomic Number 12)
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1s² 2s² 2p⁶ 3s²
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(c) Ar (Argon, Atomic Number 18)
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1s² 2s² 2p⁶ 3s² 3p⁶
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Related Questions:
- The electronic configurations listed below are incorrect. Explain the mistakes in each and write the correct electronic configurations.
- Draw Bohr’s Model for the following atoms, indicating the locations of electrons, protons, and neutrons:
- Distinguish between shell and sub-shell.
- Why is an atom electrically neutral?
- How many sub-shells are there in the N shell?
- Give notation for sub-shells of the M shell.
- List the sub-shells of the M shell in order of increasing energy.
- Which orbital in each of the following pairs is lower in energy?
- Explain the importance of chemistry in medicine, agriculture, and industry with examples.
- Discuss the role of geochemistry and astrochemistry in understanding Earth and space.
- Describe the principles of green chemistry and how they help in environmental protection.
- Can you write the formula of the carbon dioxide gas that we exhale?
- Define element, compound, and mixture.
- Differentiate between a compound and a mixture.
- Differentiate between a concentrated and a dilute solution.
- Define the term allotropes and explain the allotropes of carbon.
- What is the difference between a homogeneous and a heterogeneous solution?
- Differentiate between colloids and suspensions.
- How can you identify a solvent and a solute?
- If there are 18 protons in an Argon atom, then what is the atomic number of Argon?