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The electronic configuration ofhte eleme...

The electronic configuration ofhte elements. A, B and C are given below. Answer the question from 14 to 17 on the basis of these configuration.
`{:(A,1s^(2),2s^(2),2p^(6),,),(B,1s^(2),2s^(2),2p^(6),3s^(2),3p^(3)),(C,1s^(2),2s^(2),2p^(6),3s^(2),3p^(5)):}`
The molecular formula of the compound formed from B and C will be

A

BC

B

`B_(2)C`

C

`BC_(2)`

D

`BC_(3)`

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To determine the molecular formula of the compound formed from elements B and C based on their electronic configurations, we can follow these steps: ### Step 1: Identify the electronic configurations - Element B: \(1s^2, 2s^2, 2p^6, 3s^2, 3p^3\) - Element C: \(1s^2, 2s^2, 2p^6, 3s^2, 3p^5\) ### Step 2: Determine the oxidation states - For Element B (with configuration \(3s^2, 3p^3\)): - B has 5 valence electrons (2 from \(3s\) and 3 from \(3p\)). - To achieve a stable octet, B can lose 3 electrons, resulting in an oxidation state of \(+3\) (B\(^{3+}\)). - For Element C (with configuration \(3s^2, 3p^5\)): - C has 7 valence electrons (2 from \(3s\) and 5 from \(3p\)). - To achieve a stable octet, C can gain 1 electron, resulting in an oxidation state of \(-1\) (C\(^{-1}\)). ### Step 3: Write the formula using the cross product method - The oxidation states are B\(^{3+}\) and C\(^{-1}\). - Using the cross product method: - The subscript for C will be the absolute value of the charge of B, which is 3. - The subscript for B will be the absolute value of the charge of C, which is 1. Thus, the formula will be: \[ \text{B}_1\text{C}_3 \quad \text{or simply} \quad \text{BC}_3 \] ### Step 4: Final answer The molecular formula of the compound formed from B and C is: \[ \text{BC}_3 \] ---
To determine the molecular formula of the compound formed from elements B and C based on their electronic configurations, we can follow these steps: ### Step 1: Identify the electronic configurations - Element B: \(1s^2, 2s^2, 2p^6, 3s^2, 3p^3\) - Element C: \(1s^2, 2s^2, 2p^6, 3s^2, 3p^5\) ### Step 2: Determine the oxidation states - For Element B (with configuration \(3s^2, 3p^3\)): ...
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