Classification of Elements on the Basis of Electronic Configurations
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NEET DIGITAL LIBRARY
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313010 Which of the following ions does not have the configuration of Argon?

1 \(\mathrm{Cl}^{-}\)
2 \(\mathrm{K}^{+}\)
3 \(\mathrm{Ca}^{2+}\)
4 \(\mathrm{I}^{-}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313011 The following statements concern elements in the periodic table. Which of the following is true?

1 For Group 15 elements, the stability of +5 oxidation state increases down the group.
2 Elements of Group 16 have lower ionisation. enthalpy values compared to those of Group 15 in the corresponding periods.
3 The Group 13 elements in all metals
4 All the elements in Group 17 are gases.
JEE - 2016
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313012 Which element from the following is radioactive?

1 \(\operatorname{Pr}\)
2 \(\mathrm{Nd}\)
3 \(\mathrm{Pm}\)
4 \(\mathrm{Sm}\)
MHTCET - 2021
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313013 Read the statement A and statement B to mark the correct option given below.
Statement A :
The 4f and 5f-series of elements are placed separately in the periodic table to preserve the principle of classification.
Statement B :
s-Block elements can be found in pure form in nature.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
JEE Main - 2024
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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313010 Which of the following ions does not have the configuration of Argon?

1 \(\mathrm{Cl}^{-}\)
2 \(\mathrm{K}^{+}\)
3 \(\mathrm{Ca}^{2+}\)
4 \(\mathrm{I}^{-}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313011 The following statements concern elements in the periodic table. Which of the following is true?

1 For Group 15 elements, the stability of +5 oxidation state increases down the group.
2 Elements of Group 16 have lower ionisation. enthalpy values compared to those of Group 15 in the corresponding periods.
3 The Group 13 elements in all metals
4 All the elements in Group 17 are gases.
JEE - 2016
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313012 Which element from the following is radioactive?

1 \(\operatorname{Pr}\)
2 \(\mathrm{Nd}\)
3 \(\mathrm{Pm}\)
4 \(\mathrm{Sm}\)
MHTCET - 2021
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313013 Read the statement A and statement B to mark the correct option given below.
Statement A :
The 4f and 5f-series of elements are placed separately in the periodic table to preserve the principle of classification.
Statement B :
s-Block elements can be found in pure form in nature.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
JEE Main - 2024
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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313010 Which of the following ions does not have the configuration of Argon?

1 \(\mathrm{Cl}^{-}\)
2 \(\mathrm{K}^{+}\)
3 \(\mathrm{Ca}^{2+}\)
4 \(\mathrm{I}^{-}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313011 The following statements concern elements in the periodic table. Which of the following is true?

1 For Group 15 elements, the stability of +5 oxidation state increases down the group.
2 Elements of Group 16 have lower ionisation. enthalpy values compared to those of Group 15 in the corresponding periods.
3 The Group 13 elements in all metals
4 All the elements in Group 17 are gases.
JEE - 2016
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313012 Which element from the following is radioactive?

1 \(\operatorname{Pr}\)
2 \(\mathrm{Nd}\)
3 \(\mathrm{Pm}\)
4 \(\mathrm{Sm}\)
MHTCET - 2021
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313013 Read the statement A and statement B to mark the correct option given below.
Statement A :
The 4f and 5f-series of elements are placed separately in the periodic table to preserve the principle of classification.
Statement B :
s-Block elements can be found in pure form in nature.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
JEE Main - 2024
NEET DIGITAL LIBRARY
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313010 Which of the following ions does not have the configuration of Argon?

1 \(\mathrm{Cl}^{-}\)
2 \(\mathrm{K}^{+}\)
3 \(\mathrm{Ca}^{2+}\)
4 \(\mathrm{I}^{-}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313011 The following statements concern elements in the periodic table. Which of the following is true?

1 For Group 15 elements, the stability of +5 oxidation state increases down the group.
2 Elements of Group 16 have lower ionisation. enthalpy values compared to those of Group 15 in the corresponding periods.
3 The Group 13 elements in all metals
4 All the elements in Group 17 are gases.
JEE - 2016
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313012 Which element from the following is radioactive?

1 \(\operatorname{Pr}\)
2 \(\mathrm{Nd}\)
3 \(\mathrm{Pm}\)
4 \(\mathrm{Sm}\)
MHTCET - 2021
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313013 Read the statement A and statement B to mark the correct option given below.
Statement A :
The 4f and 5f-series of elements are placed separately in the periodic table to preserve the principle of classification.
Statement B :
s-Block elements can be found in pure form in nature.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
JEE Main - 2024
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