Write the electron configuration, and apply Pauli Exclusion Principle of the following elements below.1. Boron2. Calcium3. Magnesium
Answer (1)
Answer:1. Boron (B, atomic number 5)Electron configuration: 1s² 2s² 2p¹Pauli Exclusion Principle:1s orbital: 2 electrons (max capacity)2s orbital: 2 electrons (max capacity)2p orbital: 1 electron (can accommodate 3)2. Calcium (Ca, atomic number 20)Electron configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²Pauli Exclusion Principle:1s orbital: 2 electrons (max capacity)2s orbital: 2 electrons (max capacity)2p orbital: 6 electrons (max capacity)3s orbital: 2 electrons (max capacity)3p orbital: 6 electrons (max capacity)4s orbital: 2 electrons (max capacity)3. Magnesium (Mg, atomic number 12)Electron configuration: 1s² 2s² 2p⁶ 3s²Pauli Exclusion Principle:1s orbital: 2 electrons (max capacity)2s orbital: 2 electrons (max capacity)2p orbital: 6 electrons (max capacity)3s orbital: 2 electrons (max capacity)Note: The Pauli Exclusion Principle states that each orbital can hold a maximum of 2 electrons with opposite spins. This principle explains why electrons occupy specific orbitals and why atoms have specific electron configurations.
