Group 18 Elements
CHXI11:THE P-BLOCK ELEMENTS

316430 The synthetically produced radioactive noble gas by the collision of \({\mathrm{{ }_{98}^{249} \mathrm{Cf}}}\) with \({\mathrm{{ }_{20}^{48} \mathrm{Ca}}}\) is :

1 Radon
2 Radium
3 Oganesson
4 Xenon
CHXI11:THE P-BLOCK ELEMENTS

316431 The last element of the p-block in \(6^{\text {th }}\) period is represented by the outer most electronic configuration is

1 \({\rm{5}}{{\rm{f}}^{{\rm{14}}}}{\rm{6}}{{\rm{d}}^{{\rm{10}}}}{\rm{7}}{{\rm{s}}^{\rm{2}}}{\rm{7}}{{\rm{p}}^{\rm{6}}}\)
2 \({\rm{4}}{{\rm{f}}^{{\rm{14}}}}{\rm{5}}{{\rm{d}}^{{\rm{10}}}}{\rm{6}}{{\rm{s}}^{\rm{2}}}{\rm{6}}{{\rm{p}}^{\rm{4}}}\)
3 \({\rm{4}}{{\rm{f}}^{{\rm{14}}}}{\rm{5}}{{\rm{d}}^{{\rm{10}}}}{\rm{6}}{{\rm{s}}^{\rm{2}}}{\rm{6}}{{\rm{p}}^{\rm{6}}}\)
4 \({\rm{7}}{{\rm{s}}^{\rm{2}}}{\rm{7}}{{\rm{p}}^{\rm{6}}}\)
CHXI11:THE P-BLOCK ELEMENTS

316432 All noble gases have general electronic configuration " \(A\) " except helium which has " \(B\) ". Here, A and B refer to

1 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{4}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{2}}}\)
2 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{6}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{2}}}\)
3 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{6}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{1}}}\)
4 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{4}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{1}}}\)
CHXI11:THE P-BLOCK ELEMENTS

316433 Why are the elements of Group 18 known as noble gases?

1 They react with all elements
2 They do not react at all
3 React with few elements under certain conditions
4 Discovered by Davy
CHXI11:THE P-BLOCK ELEMENTS

316430 The synthetically produced radioactive noble gas by the collision of \({\mathrm{{ }_{98}^{249} \mathrm{Cf}}}\) with \({\mathrm{{ }_{20}^{48} \mathrm{Ca}}}\) is :

1 Radon
2 Radium
3 Oganesson
4 Xenon
CHXI11:THE P-BLOCK ELEMENTS

316431 The last element of the p-block in \(6^{\text {th }}\) period is represented by the outer most electronic configuration is

1 \({\rm{5}}{{\rm{f}}^{{\rm{14}}}}{\rm{6}}{{\rm{d}}^{{\rm{10}}}}{\rm{7}}{{\rm{s}}^{\rm{2}}}{\rm{7}}{{\rm{p}}^{\rm{6}}}\)
2 \({\rm{4}}{{\rm{f}}^{{\rm{14}}}}{\rm{5}}{{\rm{d}}^{{\rm{10}}}}{\rm{6}}{{\rm{s}}^{\rm{2}}}{\rm{6}}{{\rm{p}}^{\rm{4}}}\)
3 \({\rm{4}}{{\rm{f}}^{{\rm{14}}}}{\rm{5}}{{\rm{d}}^{{\rm{10}}}}{\rm{6}}{{\rm{s}}^{\rm{2}}}{\rm{6}}{{\rm{p}}^{\rm{6}}}\)
4 \({\rm{7}}{{\rm{s}}^{\rm{2}}}{\rm{7}}{{\rm{p}}^{\rm{6}}}\)
CHXI11:THE P-BLOCK ELEMENTS

316432 All noble gases have general electronic configuration " \(A\) " except helium which has " \(B\) ". Here, A and B refer to

1 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{4}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{2}}}\)
2 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{6}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{2}}}\)
3 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{6}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{1}}}\)
4 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{4}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{1}}}\)
CHXI11:THE P-BLOCK ELEMENTS

316433 Why are the elements of Group 18 known as noble gases?

1 They react with all elements
2 They do not react at all
3 React with few elements under certain conditions
4 Discovered by Davy
CHXI11:THE P-BLOCK ELEMENTS

316430 The synthetically produced radioactive noble gas by the collision of \({\mathrm{{ }_{98}^{249} \mathrm{Cf}}}\) with \({\mathrm{{ }_{20}^{48} \mathrm{Ca}}}\) is :

1 Radon
2 Radium
3 Oganesson
4 Xenon
CHXI11:THE P-BLOCK ELEMENTS

316431 The last element of the p-block in \(6^{\text {th }}\) period is represented by the outer most electronic configuration is

1 \({\rm{5}}{{\rm{f}}^{{\rm{14}}}}{\rm{6}}{{\rm{d}}^{{\rm{10}}}}{\rm{7}}{{\rm{s}}^{\rm{2}}}{\rm{7}}{{\rm{p}}^{\rm{6}}}\)
2 \({\rm{4}}{{\rm{f}}^{{\rm{14}}}}{\rm{5}}{{\rm{d}}^{{\rm{10}}}}{\rm{6}}{{\rm{s}}^{\rm{2}}}{\rm{6}}{{\rm{p}}^{\rm{4}}}\)
3 \({\rm{4}}{{\rm{f}}^{{\rm{14}}}}{\rm{5}}{{\rm{d}}^{{\rm{10}}}}{\rm{6}}{{\rm{s}}^{\rm{2}}}{\rm{6}}{{\rm{p}}^{\rm{6}}}\)
4 \({\rm{7}}{{\rm{s}}^{\rm{2}}}{\rm{7}}{{\rm{p}}^{\rm{6}}}\)
CHXI11:THE P-BLOCK ELEMENTS

316432 All noble gases have general electronic configuration " \(A\) " except helium which has " \(B\) ". Here, A and B refer to

1 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{4}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{2}}}\)
2 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{6}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{2}}}\)
3 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{6}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{1}}}\)
4 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{4}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{1}}}\)
CHXI11:THE P-BLOCK ELEMENTS

316433 Why are the elements of Group 18 known as noble gases?

1 They react with all elements
2 They do not react at all
3 React with few elements under certain conditions
4 Discovered by Davy
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXI11:THE P-BLOCK ELEMENTS

316430 The synthetically produced radioactive noble gas by the collision of \({\mathrm{{ }_{98}^{249} \mathrm{Cf}}}\) with \({\mathrm{{ }_{20}^{48} \mathrm{Ca}}}\) is :

1 Radon
2 Radium
3 Oganesson
4 Xenon
CHXI11:THE P-BLOCK ELEMENTS

316431 The last element of the p-block in \(6^{\text {th }}\) period is represented by the outer most electronic configuration is

1 \({\rm{5}}{{\rm{f}}^{{\rm{14}}}}{\rm{6}}{{\rm{d}}^{{\rm{10}}}}{\rm{7}}{{\rm{s}}^{\rm{2}}}{\rm{7}}{{\rm{p}}^{\rm{6}}}\)
2 \({\rm{4}}{{\rm{f}}^{{\rm{14}}}}{\rm{5}}{{\rm{d}}^{{\rm{10}}}}{\rm{6}}{{\rm{s}}^{\rm{2}}}{\rm{6}}{{\rm{p}}^{\rm{4}}}\)
3 \({\rm{4}}{{\rm{f}}^{{\rm{14}}}}{\rm{5}}{{\rm{d}}^{{\rm{10}}}}{\rm{6}}{{\rm{s}}^{\rm{2}}}{\rm{6}}{{\rm{p}}^{\rm{6}}}\)
4 \({\rm{7}}{{\rm{s}}^{\rm{2}}}{\rm{7}}{{\rm{p}}^{\rm{6}}}\)
CHXI11:THE P-BLOCK ELEMENTS

316432 All noble gases have general electronic configuration " \(A\) " except helium which has " \(B\) ". Here, A and B refer to

1 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{4}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{2}}}\)
2 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{6}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{2}}}\)
3 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{6}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{1}}}\)
4 \({\rm{A - n}}{{\rm{s}}^{\rm{2}}}{\rm{n}}{{\rm{p}}^{\rm{4}}}{\rm{;B - 1}}{{\rm{s}}^{\rm{1}}}\)
CHXI11:THE P-BLOCK ELEMENTS

316433 Why are the elements of Group 18 known as noble gases?

1 They react with all elements
2 They do not react at all
3 React with few elements under certain conditions
4 Discovered by Davy