238889
Assertion (A) : Atoms with completely filled and half-filled subshells are stable. Reason (R) : Completely filled and half-filled subshells have symmetrical distribution of electrons and have maximum exchange energy. The correct answer is
1 (A) and (R) are correct, (R) is the correct explanation of (A)
2 (A) and (R) are correct, (R) is not the correct explanation of (A)
3 (A) is correct, but (R) is not correct
4 (A) is not correct, but (R) is correct
Explanation:
Atoms with completely filled and half filled subshells have symmetrical distribution of electrons and have maximum exchange energy and the electrons are more stable in the atom.
TS-EAMCET-2016
Structure of Atom
238902
The total number of orbitals in the fifth energy ..is:
1 5
2 10
3 18
4 25
Explanation:
Given:- $\mathrm{n}=5$ Total number of orbital's in the fifth energy level $\begin{aligned} & =\mathrm{n}^2 \\ & =5^2 \\ & =25 . \end{aligned}$
AP-EAMCET (Medical)
Structure of Atom
238907
In which of the following pairs, the outer most electronic configuration will be the same?
238909
Assertion: $\mathrm{Yb}^{+2}$ is more stable in comparison to $\mathrm{Gd}^{+2}$ Reason: The electronic configuration of $\mathrm{Gd}$ is $[\mathrm{Xe}] 4 \mathrm{f}^7 5 \mathrm{~d}^2 6 \mathrm{~s}^2$.
1 If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2 If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
3 If Assertion is correct but Reason is incorrect.
4 If both the Assertion and Reason are incorrect.
Explanation:
The electronic configuration of $\mathrm{Yb}^{2+}$ and $\mathrm{Gd}^{2+}$ are: $\begin{aligned} & \mathrm{Yb}^{2+}:[\mathrm{Xe}] 4 \mathrm{f}^{14} 5 \mathrm{~d}^0 6 \mathrm{~s}^0 \\ & \mathrm{Gd}^{2+}:[\mathrm{Xe}] 4 \mathrm{f}^7 5 \mathrm{~d}^1 6 \mathrm{~s}^0 \end{aligned}$ Thus, the given electronic configuration of $\mathrm{Gd}^{2+}$ is not correct.
238889
Assertion (A) : Atoms with completely filled and half-filled subshells are stable. Reason (R) : Completely filled and half-filled subshells have symmetrical distribution of electrons and have maximum exchange energy. The correct answer is
1 (A) and (R) are correct, (R) is the correct explanation of (A)
2 (A) and (R) are correct, (R) is not the correct explanation of (A)
3 (A) is correct, but (R) is not correct
4 (A) is not correct, but (R) is correct
Explanation:
Atoms with completely filled and half filled subshells have symmetrical distribution of electrons and have maximum exchange energy and the electrons are more stable in the atom.
TS-EAMCET-2016
Structure of Atom
238902
The total number of orbitals in the fifth energy ..is:
1 5
2 10
3 18
4 25
Explanation:
Given:- $\mathrm{n}=5$ Total number of orbital's in the fifth energy level $\begin{aligned} & =\mathrm{n}^2 \\ & =5^2 \\ & =25 . \end{aligned}$
AP-EAMCET (Medical)
Structure of Atom
238907
In which of the following pairs, the outer most electronic configuration will be the same?
238909
Assertion: $\mathrm{Yb}^{+2}$ is more stable in comparison to $\mathrm{Gd}^{+2}$ Reason: The electronic configuration of $\mathrm{Gd}$ is $[\mathrm{Xe}] 4 \mathrm{f}^7 5 \mathrm{~d}^2 6 \mathrm{~s}^2$.
1 If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2 If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
3 If Assertion is correct but Reason is incorrect.
4 If both the Assertion and Reason are incorrect.
Explanation:
The electronic configuration of $\mathrm{Yb}^{2+}$ and $\mathrm{Gd}^{2+}$ are: $\begin{aligned} & \mathrm{Yb}^{2+}:[\mathrm{Xe}] 4 \mathrm{f}^{14} 5 \mathrm{~d}^0 6 \mathrm{~s}^0 \\ & \mathrm{Gd}^{2+}:[\mathrm{Xe}] 4 \mathrm{f}^7 5 \mathrm{~d}^1 6 \mathrm{~s}^0 \end{aligned}$ Thus, the given electronic configuration of $\mathrm{Gd}^{2+}$ is not correct.
238889
Assertion (A) : Atoms with completely filled and half-filled subshells are stable. Reason (R) : Completely filled and half-filled subshells have symmetrical distribution of electrons and have maximum exchange energy. The correct answer is
1 (A) and (R) are correct, (R) is the correct explanation of (A)
2 (A) and (R) are correct, (R) is not the correct explanation of (A)
3 (A) is correct, but (R) is not correct
4 (A) is not correct, but (R) is correct
Explanation:
Atoms with completely filled and half filled subshells have symmetrical distribution of electrons and have maximum exchange energy and the electrons are more stable in the atom.
TS-EAMCET-2016
Structure of Atom
238902
The total number of orbitals in the fifth energy ..is:
1 5
2 10
3 18
4 25
Explanation:
Given:- $\mathrm{n}=5$ Total number of orbital's in the fifth energy level $\begin{aligned} & =\mathrm{n}^2 \\ & =5^2 \\ & =25 . \end{aligned}$
AP-EAMCET (Medical)
Structure of Atom
238907
In which of the following pairs, the outer most electronic configuration will be the same?
238909
Assertion: $\mathrm{Yb}^{+2}$ is more stable in comparison to $\mathrm{Gd}^{+2}$ Reason: The electronic configuration of $\mathrm{Gd}$ is $[\mathrm{Xe}] 4 \mathrm{f}^7 5 \mathrm{~d}^2 6 \mathrm{~s}^2$.
1 If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2 If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
3 If Assertion is correct but Reason is incorrect.
4 If both the Assertion and Reason are incorrect.
Explanation:
The electronic configuration of $\mathrm{Yb}^{2+}$ and $\mathrm{Gd}^{2+}$ are: $\begin{aligned} & \mathrm{Yb}^{2+}:[\mathrm{Xe}] 4 \mathrm{f}^{14} 5 \mathrm{~d}^0 6 \mathrm{~s}^0 \\ & \mathrm{Gd}^{2+}:[\mathrm{Xe}] 4 \mathrm{f}^7 5 \mathrm{~d}^1 6 \mathrm{~s}^0 \end{aligned}$ Thus, the given electronic configuration of $\mathrm{Gd}^{2+}$ is not correct.
238889
Assertion (A) : Atoms with completely filled and half-filled subshells are stable. Reason (R) : Completely filled and half-filled subshells have symmetrical distribution of electrons and have maximum exchange energy. The correct answer is
1 (A) and (R) are correct, (R) is the correct explanation of (A)
2 (A) and (R) are correct, (R) is not the correct explanation of (A)
3 (A) is correct, but (R) is not correct
4 (A) is not correct, but (R) is correct
Explanation:
Atoms with completely filled and half filled subshells have symmetrical distribution of electrons and have maximum exchange energy and the electrons are more stable in the atom.
TS-EAMCET-2016
Structure of Atom
238902
The total number of orbitals in the fifth energy ..is:
1 5
2 10
3 18
4 25
Explanation:
Given:- $\mathrm{n}=5$ Total number of orbital's in the fifth energy level $\begin{aligned} & =\mathrm{n}^2 \\ & =5^2 \\ & =25 . \end{aligned}$
AP-EAMCET (Medical)
Structure of Atom
238907
In which of the following pairs, the outer most electronic configuration will be the same?
238909
Assertion: $\mathrm{Yb}^{+2}$ is more stable in comparison to $\mathrm{Gd}^{+2}$ Reason: The electronic configuration of $\mathrm{Gd}$ is $[\mathrm{Xe}] 4 \mathrm{f}^7 5 \mathrm{~d}^2 6 \mathrm{~s}^2$.
1 If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2 If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
3 If Assertion is correct but Reason is incorrect.
4 If both the Assertion and Reason are incorrect.
Explanation:
The electronic configuration of $\mathrm{Yb}^{2+}$ and $\mathrm{Gd}^{2+}$ are: $\begin{aligned} & \mathrm{Yb}^{2+}:[\mathrm{Xe}] 4 \mathrm{f}^{14} 5 \mathrm{~d}^0 6 \mathrm{~s}^0 \\ & \mathrm{Gd}^{2+}:[\mathrm{Xe}] 4 \mathrm{f}^7 5 \mathrm{~d}^1 6 \mathrm{~s}^0 \end{aligned}$ Thus, the given electronic configuration of $\mathrm{Gd}^{2+}$ is not correct.
