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Electronic Configurations and The Periodic Table

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313033 From the following pairs of ions which one is not an iso-electronic pair ?

1 \({\rm{N}}{{\rm{a}}^{\rm{ + }}}{\rm{,}}\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}\)

2 \({\rm{M}}{{\rm{n}}^{{\rm{2 + }}}}{\rm{,}}\,{\rm{F}}{{\rm{e}}^{{\rm{3 + }}}}\)

3 \({\rm{F}}{{\rm{e}}^{{\rm{2 + }}}}{\rm{,}}\,{\rm{M}}{{\rm{n}}^{{\rm{2 + }}}}\)

4 \({{\rm{O}}^{{\rm{2 - }}}}{\rm{,}}\,{{\rm{F}}^{\rm{ - }}}\)

NEET - 2021

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313034 The first four elements in group 16 are collectively known as

1 halogens

2 chalcogens

3 noble gases

4 carbon family.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313035 The electronic configuration of the element which is just above the element with atomic number 43 in the same group is

1 \(1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{5} 4 \mathrm{~s}^{2}\)

2 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{5}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}{\rm{4}}{{\rm{p}}^{\rm{6}}}\)

3 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{6}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}\)

4 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{7}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}\)

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313036 In transition elements, the incoming electron occupies (n-1)d subshell in preference to

1 np-level

2 ns-level

3 (n-1) p-level

4 \((\mathrm{n}+1)\) s-level

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313037 The 6th period of the periodic table contains

1 Two s-block and six p-block elements

2 Fourteen f-block elements

3 Ten d-block elements

4 All the three above

NEET DIGITAL LIBRARY

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313033 From the following pairs of ions which one is not an iso-electronic pair ?

1 \({\rm{N}}{{\rm{a}}^{\rm{ + }}}{\rm{,}}\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}\)

2 \({\rm{M}}{{\rm{n}}^{{\rm{2 + }}}}{\rm{,}}\,{\rm{F}}{{\rm{e}}^{{\rm{3 + }}}}\)

3 \({\rm{F}}{{\rm{e}}^{{\rm{2 + }}}}{\rm{,}}\,{\rm{M}}{{\rm{n}}^{{\rm{2 + }}}}\)

4 \({{\rm{O}}^{{\rm{2 - }}}}{\rm{,}}\,{{\rm{F}}^{\rm{ - }}}\)

NEET - 2021

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313034 The first four elements in group 16 are collectively known as

1 halogens

2 chalcogens

3 noble gases

4 carbon family.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313035 The electronic configuration of the element which is just above the element with atomic number 43 in the same group is

1 \(1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{5} 4 \mathrm{~s}^{2}\)

2 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{5}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}{\rm{4}}{{\rm{p}}^{\rm{6}}}\)

3 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{6}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}\)

4 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{7}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}\)

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313036 In transition elements, the incoming electron occupies (n-1)d subshell in preference to

1 np-level

2 ns-level

3 (n-1) p-level

4 \((\mathrm{n}+1)\) s-level

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313037 The 6th period of the periodic table contains

1 Two s-block and six p-block elements

2 Fourteen f-block elements

3 Ten d-block elements

4 All the three above

Join With Us for More Updates

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313033 From the following pairs of ions which one is not an iso-electronic pair ?

1 \({\rm{N}}{{\rm{a}}^{\rm{ + }}}{\rm{,}}\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}\)

2 \({\rm{M}}{{\rm{n}}^{{\rm{2 + }}}}{\rm{,}}\,{\rm{F}}{{\rm{e}}^{{\rm{3 + }}}}\)

3 \({\rm{F}}{{\rm{e}}^{{\rm{2 + }}}}{\rm{,}}\,{\rm{M}}{{\rm{n}}^{{\rm{2 + }}}}\)

4 \({{\rm{O}}^{{\rm{2 - }}}}{\rm{,}}\,{{\rm{F}}^{\rm{ - }}}\)

NEET - 2021

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313034 The first four elements in group 16 are collectively known as

1 halogens

2 chalcogens

3 noble gases

4 carbon family.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313035 The electronic configuration of the element which is just above the element with atomic number 43 in the same group is

1 \(1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{5} 4 \mathrm{~s}^{2}\)

2 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{5}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}{\rm{4}}{{\rm{p}}^{\rm{6}}}\)

3 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{6}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}\)

4 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{7}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}\)

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313036 In transition elements, the incoming electron occupies (n-1)d subshell in preference to

1 np-level

2 ns-level

3 (n-1) p-level

4 \((\mathrm{n}+1)\) s-level

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313037 The 6th period of the periodic table contains

1 Two s-block and six p-block elements

2 Fourteen f-block elements

3 Ten d-block elements

4 All the three above

For More Updates join with Us

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313033 From the following pairs of ions which one is not an iso-electronic pair ?

1 \({\rm{N}}{{\rm{a}}^{\rm{ + }}}{\rm{,}}\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}\)

2 \({\rm{M}}{{\rm{n}}^{{\rm{2 + }}}}{\rm{,}}\,{\rm{F}}{{\rm{e}}^{{\rm{3 + }}}}\)

3 \({\rm{F}}{{\rm{e}}^{{\rm{2 + }}}}{\rm{,}}\,{\rm{M}}{{\rm{n}}^{{\rm{2 + }}}}\)

4 \({{\rm{O}}^{{\rm{2 - }}}}{\rm{,}}\,{{\rm{F}}^{\rm{ - }}}\)

NEET - 2021

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313034 The first four elements in group 16 are collectively known as

1 halogens

2 chalcogens

3 noble gases

4 carbon family.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313035 The electronic configuration of the element which is just above the element with atomic number 43 in the same group is

1 \(1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{5} 4 \mathrm{~s}^{2}\)

2 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{5}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}{\rm{4}}{{\rm{p}}^{\rm{6}}}\)

3 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{6}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}\)

4 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{7}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}\)

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313036 In transition elements, the incoming electron occupies (n-1)d subshell in preference to

1 np-level

2 ns-level

3 (n-1) p-level

4 \((\mathrm{n}+1)\) s-level

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313037 The 6th period of the periodic table contains

1 Two s-block and six p-block elements

2 Fourteen f-block elements

3 Ten d-block elements

4 All the three above

NEET DIGITAL LIBRARY

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313033 From the following pairs of ions which one is not an iso-electronic pair ?

1 \({\rm{N}}{{\rm{a}}^{\rm{ + }}}{\rm{,}}\,{\rm{M}}{{\rm{g}}^{{\rm{2 + }}}}\)

2 \({\rm{M}}{{\rm{n}}^{{\rm{2 + }}}}{\rm{,}}\,{\rm{F}}{{\rm{e}}^{{\rm{3 + }}}}\)

3 \({\rm{F}}{{\rm{e}}^{{\rm{2 + }}}}{\rm{,}}\,{\rm{M}}{{\rm{n}}^{{\rm{2 + }}}}\)

4 \({{\rm{O}}^{{\rm{2 - }}}}{\rm{,}}\,{{\rm{F}}^{\rm{ - }}}\)

NEET - 2021

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313034 The first four elements in group 16 are collectively known as

1 halogens

2 chalcogens

3 noble gases

4 carbon family.

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313035 The electronic configuration of the element which is just above the element with atomic number 43 in the same group is

1 \(1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{5} 4 \mathrm{~s}^{2}\)

2 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{5}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}{\rm{4}}{{\rm{p}}^{\rm{6}}}\)

3 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{6}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}\)

4 \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{s}}^{\rm{2}}}{\rm{2}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{s}}^{\rm{2}}}{\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{3}}{{\rm{d}}^{\rm{7}}}{\rm{4}}{{\rm{s}}^{\rm{2}}}\)

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313036 In transition elements, the incoming electron occupies (n-1)d subshell in preference to

1 np-level

2 ns-level

3 (n-1) p-level

4 \((\mathrm{n}+1)\) s-level

CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313037 The 6th period of the periodic table contains

1 Two s-block and six p-block elements

2 Fourteen f-block elements

3 Ten d-block elements

4 All the three above

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