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The ground state electronic configuratio...

The ground state electronic configuration of the elements, U, V, W, X, and Y (these symbols do not have any chemical significance) are as follows:
`U" "1s^(2)2s^(2)2p^(3)`
`V" "1s^(2)2s^(2)2p^(6)3s^(1)`
`W" "1s^(2)2s^(2)2p^(6)3s^(2)3p^(2)`
`X" "1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5)4s^(2)`
`Y" "1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(10)4s^(2)4p^(6)`
Determine which sequence of elements satisfy the following statements:
(i) Element that forms a carbonate which is not decomposed by heating
(ii) Element which is most likely to form coloured ionic compound
(iii) Element which has largest atomic radius
(iv) Element which forms only acidic oxide

A

V W Y U

B

V X Y W

C

V W Y X

D

V X W U

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to identify the elements based on their electronic configurations and then determine which element corresponds to each of the statements provided. ### Step 1: Identify the Elements 1. **Element U**: The electronic configuration is `1s² 2s² 2p³`. The atomic number is 7, which corresponds to **Nitrogen (N)**. 2. **Element V**: The electronic configuration is `1s² 2s² 2p⁶ 3s¹`. The atomic number is 11, which corresponds to **Sodium (Na)**. 3. **Element W**: The electronic configuration is `1s² 2s² 2p⁶ 3s² 3p²`. The atomic number is 14, which corresponds to **Silicon (Si)**. 4. **Element X**: The electronic configuration is `1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s²`. The atomic number is 25, which corresponds to **Manganese (Mn)**. 5. **Element Y**: The electronic configuration is `1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶`. The atomic number is 36, which corresponds to **Krypton (Kr)**. ### Step 2: Analyze Each Statement 1. **Element that forms a carbonate which is not decomposed by heating**: - Sodium (V) forms sodium carbonate (Na₂CO₃), which is thermally stable and does not decompose upon heating. - **Answer: V (Sodium)** 2. **Element which is most likely to form a colored ionic compound**: - Manganese (X) is a transition metal with partially filled d-orbitals, which allows it to form colored compounds. - **Answer: X (Manganese)** 3. **Element which has the largest atomic radius**: - Among the given elements, Krypton (Y) is a noble gas and has the largest atomic radius due to its full valence shell and being in the highest period. - **Answer: Y (Krypton)** 4. **Element which forms only acidic oxide**: - Silicon (W) forms silicon dioxide (SiO₂), which is an acidic oxide. - **Answer: W (Silicon)** ### Step 3: Compile the Answers Based on the analysis: - (i) V (Sodium) - (ii) X (Manganese) - (iii) Y (Krypton) - (iv) W (Silicon) ### Final Sequence of Elements The sequence of elements that satisfy the statements is: **V, X, Y, W**.

To solve the problem, we need to identify the elements based on their electronic configurations and then determine which element corresponds to each of the statements provided. ### Step 1: Identify the Elements 1. **Element U**: The electronic configuration is `1s² 2s² 2p³`. The atomic number is 7, which corresponds to **Nitrogen (N)**. 2. **Element V**: The electronic configuration is `1s² 2s² 2p⁶ 3s¹`. The atomic number is 11, which corresponds to **Sodium (Na)**. 3. **Element W**: The electronic configuration is `1s² 2s² 2p⁶ 3s² 3p²`. The atomic number is 14, which corresponds to **Silicon (Si)**. 4. **Element X**: The electronic configuration is `1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s²`. The atomic number is 25, which corresponds to **Manganese (Mn)**. 5. **Element Y**: The electronic configuration is `1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶`. The atomic number is 36, which corresponds to **Krypton (Kr)**. ...
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The ground state electronic configuration of the elements, U, V, W, X, and Y (these symbols do not have any chemical significance) are as follows: U" "1s^(2)2s^(2)2p^(3) V" "1s^(2)2s^(2)2p^(6)3s^(1) W" "1s^(2)2s^(2)2p^(6)3s^(2)3p^(2) X" "1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5)4s^(2) Y" "1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(10)4s^(2)4p^(6) Determine which sequence of elements satisfy the following statement: (i) element forms a carbonate which is not decomposed by heating (ii) Element is most likely to form coloured ionic compound (iii) element has largest atomic radius (iv) element forms only acidic oxide

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Knowledge Check

  • The electronic configuration for some neutral atoms are given below : (i) 1s^(2),2s^(2),2p^(6),3s^(2) (ii) 1s^(2),2s^(2)2p^(6),3s^(1) (iii) 1s^(2),2s^(2)2p^(6),3s^(2)3p^(2) (iv) 1s^(2),2s^(2)2p^(6),3s^(2)3p^(3) Which of these is expected to have the highest second ionization enthalpy ?

    A
    Is an alkali metal
    B
    is a noble metal
    C
    (i) and (ii)form ionic compounds
    D
    (iv)has high ionisation enthalpy.
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