321573
Among the following, the one that is not an actinoid is
1 curium
2 californium
3 uranium
4 terbium
Explanation:
Terbium is lanthanoid as it belongs to \(\mathrm{4 \mathrm{f}}\) series and having configuration \(\mathrm{[X e] 4 f^{9} 6 s^{2}}\). However the remaining members belongs to \(\mathrm{5 \mathrm{f}}\) - series (actinoids).
CHXII08:THE D- & F-BLOCK ELEMENTS
321574
There are 14 elements in actinoid series. Which of the following elements does not belong to this series?
1 \(\mathrm{U}\)
2 \(\mathrm{\mathrm{Np}}\)
3 \(\mathrm{\mathrm{Tm}}\)
4 Fm
Explanation:
Thulium is a Lanthanoid.
CHXII08:THE D- & F-BLOCK ELEMENTS
321575
Which of the following is not an actinoid?
1 Am
2 \(\mathrm{Cm}\)
3 Fm
4 \(\mathrm{Tm}\)
Explanation:
\({\rm{Tm}} \to {\rm{Thulium}}\, - {\rm{Atomic}}\) number 69. It is a lanthanide because lanthanides are present in sixth period of periodic table from atomic number 57 (lanthanum) to atomic number 71 (lutetium).
CHXII08:THE D- & F-BLOCK ELEMENTS
321576
The number of elements from the following that do not belong to lanthanoids is \({\mathrm{\mathrm{Eu}, \mathrm{Cm}, \mathrm{Er}, \mathrm{Tb}}}\), Yb and Lu
1 5
2 1
3 3
4 4
Explanation:
Curium \({\mathrm{(\mathrm{Cm})}}\) belongs to actinoids. So, the correct option is (2).
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS
321577
Which of the following is a synthetic Lanthanoid?
321573
Among the following, the one that is not an actinoid is
1 curium
2 californium
3 uranium
4 terbium
Explanation:
Terbium is lanthanoid as it belongs to \(\mathrm{4 \mathrm{f}}\) series and having configuration \(\mathrm{[X e] 4 f^{9} 6 s^{2}}\). However the remaining members belongs to \(\mathrm{5 \mathrm{f}}\) - series (actinoids).
CHXII08:THE D- & F-BLOCK ELEMENTS
321574
There are 14 elements in actinoid series. Which of the following elements does not belong to this series?
1 \(\mathrm{U}\)
2 \(\mathrm{\mathrm{Np}}\)
3 \(\mathrm{\mathrm{Tm}}\)
4 Fm
Explanation:
Thulium is a Lanthanoid.
CHXII08:THE D- & F-BLOCK ELEMENTS
321575
Which of the following is not an actinoid?
1 Am
2 \(\mathrm{Cm}\)
3 Fm
4 \(\mathrm{Tm}\)
Explanation:
\({\rm{Tm}} \to {\rm{Thulium}}\, - {\rm{Atomic}}\) number 69. It is a lanthanide because lanthanides are present in sixth period of periodic table from atomic number 57 (lanthanum) to atomic number 71 (lutetium).
CHXII08:THE D- & F-BLOCK ELEMENTS
321576
The number of elements from the following that do not belong to lanthanoids is \({\mathrm{\mathrm{Eu}, \mathrm{Cm}, \mathrm{Er}, \mathrm{Tb}}}\), Yb and Lu
1 5
2 1
3 3
4 4
Explanation:
Curium \({\mathrm{(\mathrm{Cm})}}\) belongs to actinoids. So, the correct option is (2).
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS
321577
Which of the following is a synthetic Lanthanoid?
321573
Among the following, the one that is not an actinoid is
1 curium
2 californium
3 uranium
4 terbium
Explanation:
Terbium is lanthanoid as it belongs to \(\mathrm{4 \mathrm{f}}\) series and having configuration \(\mathrm{[X e] 4 f^{9} 6 s^{2}}\). However the remaining members belongs to \(\mathrm{5 \mathrm{f}}\) - series (actinoids).
CHXII08:THE D- & F-BLOCK ELEMENTS
321574
There are 14 elements in actinoid series. Which of the following elements does not belong to this series?
1 \(\mathrm{U}\)
2 \(\mathrm{\mathrm{Np}}\)
3 \(\mathrm{\mathrm{Tm}}\)
4 Fm
Explanation:
Thulium is a Lanthanoid.
CHXII08:THE D- & F-BLOCK ELEMENTS
321575
Which of the following is not an actinoid?
1 Am
2 \(\mathrm{Cm}\)
3 Fm
4 \(\mathrm{Tm}\)
Explanation:
\({\rm{Tm}} \to {\rm{Thulium}}\, - {\rm{Atomic}}\) number 69. It is a lanthanide because lanthanides are present in sixth period of periodic table from atomic number 57 (lanthanum) to atomic number 71 (lutetium).
CHXII08:THE D- & F-BLOCK ELEMENTS
321576
The number of elements from the following that do not belong to lanthanoids is \({\mathrm{\mathrm{Eu}, \mathrm{Cm}, \mathrm{Er}, \mathrm{Tb}}}\), Yb and Lu
1 5
2 1
3 3
4 4
Explanation:
Curium \({\mathrm{(\mathrm{Cm})}}\) belongs to actinoids. So, the correct option is (2).
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS
321577
Which of the following is a synthetic Lanthanoid?
NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXII08:THE D- & F-BLOCK ELEMENTS
321573
Among the following, the one that is not an actinoid is
1 curium
2 californium
3 uranium
4 terbium
Explanation:
Terbium is lanthanoid as it belongs to \(\mathrm{4 \mathrm{f}}\) series and having configuration \(\mathrm{[X e] 4 f^{9} 6 s^{2}}\). However the remaining members belongs to \(\mathrm{5 \mathrm{f}}\) - series (actinoids).
CHXII08:THE D- & F-BLOCK ELEMENTS
321574
There are 14 elements in actinoid series. Which of the following elements does not belong to this series?
1 \(\mathrm{U}\)
2 \(\mathrm{\mathrm{Np}}\)
3 \(\mathrm{\mathrm{Tm}}\)
4 Fm
Explanation:
Thulium is a Lanthanoid.
CHXII08:THE D- & F-BLOCK ELEMENTS
321575
Which of the following is not an actinoid?
1 Am
2 \(\mathrm{Cm}\)
3 Fm
4 \(\mathrm{Tm}\)
Explanation:
\({\rm{Tm}} \to {\rm{Thulium}}\, - {\rm{Atomic}}\) number 69. It is a lanthanide because lanthanides are present in sixth period of periodic table from atomic number 57 (lanthanum) to atomic number 71 (lutetium).
CHXII08:THE D- & F-BLOCK ELEMENTS
321576
The number of elements from the following that do not belong to lanthanoids is \({\mathrm{\mathrm{Eu}, \mathrm{Cm}, \mathrm{Er}, \mathrm{Tb}}}\), Yb and Lu
1 5
2 1
3 3
4 4
Explanation:
Curium \({\mathrm{(\mathrm{Cm})}}\) belongs to actinoids. So, the correct option is (2).
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS
321577
Which of the following is a synthetic Lanthanoid?
321573
Among the following, the one that is not an actinoid is
1 curium
2 californium
3 uranium
4 terbium
Explanation:
Terbium is lanthanoid as it belongs to \(\mathrm{4 \mathrm{f}}\) series and having configuration \(\mathrm{[X e] 4 f^{9} 6 s^{2}}\). However the remaining members belongs to \(\mathrm{5 \mathrm{f}}\) - series (actinoids).
CHXII08:THE D- & F-BLOCK ELEMENTS
321574
There are 14 elements in actinoid series. Which of the following elements does not belong to this series?
1 \(\mathrm{U}\)
2 \(\mathrm{\mathrm{Np}}\)
3 \(\mathrm{\mathrm{Tm}}\)
4 Fm
Explanation:
Thulium is a Lanthanoid.
CHXII08:THE D- & F-BLOCK ELEMENTS
321575
Which of the following is not an actinoid?
1 Am
2 \(\mathrm{Cm}\)
3 Fm
4 \(\mathrm{Tm}\)
Explanation:
\({\rm{Tm}} \to {\rm{Thulium}}\, - {\rm{Atomic}}\) number 69. It is a lanthanide because lanthanides are present in sixth period of periodic table from atomic number 57 (lanthanum) to atomic number 71 (lutetium).
CHXII08:THE D- & F-BLOCK ELEMENTS
321576
The number of elements from the following that do not belong to lanthanoids is \({\mathrm{\mathrm{Eu}, \mathrm{Cm}, \mathrm{Er}, \mathrm{Tb}}}\), Yb and Lu
1 5
2 1
3 3
4 4
Explanation:
Curium \({\mathrm{(\mathrm{Cm})}}\) belongs to actinoids. So, the correct option is (2).
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS
321577
Which of the following is a synthetic Lanthanoid?