CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313061
Which of the elements whose atomic numbers are given below, cannot be accommodated in the present set up of the long form of the periodic table?
1 107
2 118
3 126
4 102
Explanation:
The present long form of the periodic table contains elements with atomic number 1 to 118 only (in total 7 periods).
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313062
Similarity in chemical properties of the atoms of elements in a group of the periodic table is most closely related to:
1 Atomic numbers
2 Atomic masses
3 Number of principal energy levels
4 Number of valence electrons
Explanation:
If elements are arranged in order of their increasing atomic numbers, elements coming at intervals of 2, 8, 8, 18, 18, 32 and 32 will have similar physical and chemical properties and thus grouped in one particular group.
JEE - 2014
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313063
The plot of square root of frequency of X-rays emitted against atomic number led to the suggestion of which law (rule)?
1 Mendeleev's periodic law
2 Modern periodic law
3 Hund's rule
4 Newland's law
Explanation:
Moseley gave the modern periodic law. He showed that atomic number is more fundamental property of an element than its atomic mass.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313064
\(_{{\rm{92}}}^{{\rm{238}}}{\rm{U}}\) (IIIB) changes to \(_{{\rm{90}}}^{{\rm{234}}}{\rm{Th}}\) by emission of \({\rm{\alpha - }}\) particle. "Th" element will be in ______ group.
1 IIIB
2 IB
3 VB
4 IIA
Explanation:
Conceptual Questions
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313065
The element which does not belong to group 15 is
1 As
2 P
3 Bi
4 Se
Explanation:
The element which does not belong to group 15 is Se (selenium). It belongs to group 16 of the periodic table. It resides in 4th period and 16th group having atomic number 34. Electronic configuration of Se is \({\rm{4}}{{\rm{s}}^{\rm{2}}}\,{\rm{4}}{{\rm{p}}^{\rm{2}}}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313061
Which of the elements whose atomic numbers are given below, cannot be accommodated in the present set up of the long form of the periodic table?
1 107
2 118
3 126
4 102
Explanation:
The present long form of the periodic table contains elements with atomic number 1 to 118 only (in total 7 periods).
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313062
Similarity in chemical properties of the atoms of elements in a group of the periodic table is most closely related to:
1 Atomic numbers
2 Atomic masses
3 Number of principal energy levels
4 Number of valence electrons
Explanation:
If elements are arranged in order of their increasing atomic numbers, elements coming at intervals of 2, 8, 8, 18, 18, 32 and 32 will have similar physical and chemical properties and thus grouped in one particular group.
JEE - 2014
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313063
The plot of square root of frequency of X-rays emitted against atomic number led to the suggestion of which law (rule)?
1 Mendeleev's periodic law
2 Modern periodic law
3 Hund's rule
4 Newland's law
Explanation:
Moseley gave the modern periodic law. He showed that atomic number is more fundamental property of an element than its atomic mass.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313064
\(_{{\rm{92}}}^{{\rm{238}}}{\rm{U}}\) (IIIB) changes to \(_{{\rm{90}}}^{{\rm{234}}}{\rm{Th}}\) by emission of \({\rm{\alpha - }}\) particle. "Th" element will be in ______ group.
1 IIIB
2 IB
3 VB
4 IIA
Explanation:
Conceptual Questions
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313065
The element which does not belong to group 15 is
1 As
2 P
3 Bi
4 Se
Explanation:
The element which does not belong to group 15 is Se (selenium). It belongs to group 16 of the periodic table. It resides in 4th period and 16th group having atomic number 34. Electronic configuration of Se is \({\rm{4}}{{\rm{s}}^{\rm{2}}}\,{\rm{4}}{{\rm{p}}^{\rm{2}}}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313061
Which of the elements whose atomic numbers are given below, cannot be accommodated in the present set up of the long form of the periodic table?
1 107
2 118
3 126
4 102
Explanation:
The present long form of the periodic table contains elements with atomic number 1 to 118 only (in total 7 periods).
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313062
Similarity in chemical properties of the atoms of elements in a group of the periodic table is most closely related to:
1 Atomic numbers
2 Atomic masses
3 Number of principal energy levels
4 Number of valence electrons
Explanation:
If elements are arranged in order of their increasing atomic numbers, elements coming at intervals of 2, 8, 8, 18, 18, 32 and 32 will have similar physical and chemical properties and thus grouped in one particular group.
JEE - 2014
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313063
The plot of square root of frequency of X-rays emitted against atomic number led to the suggestion of which law (rule)?
1 Mendeleev's periodic law
2 Modern periodic law
3 Hund's rule
4 Newland's law
Explanation:
Moseley gave the modern periodic law. He showed that atomic number is more fundamental property of an element than its atomic mass.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313064
\(_{{\rm{92}}}^{{\rm{238}}}{\rm{U}}\) (IIIB) changes to \(_{{\rm{90}}}^{{\rm{234}}}{\rm{Th}}\) by emission of \({\rm{\alpha - }}\) particle. "Th" element will be in ______ group.
1 IIIB
2 IB
3 VB
4 IIA
Explanation:
Conceptual Questions
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313065
The element which does not belong to group 15 is
1 As
2 P
3 Bi
4 Se
Explanation:
The element which does not belong to group 15 is Se (selenium). It belongs to group 16 of the periodic table. It resides in 4th period and 16th group having atomic number 34. Electronic configuration of Se is \({\rm{4}}{{\rm{s}}^{\rm{2}}}\,{\rm{4}}{{\rm{p}}^{\rm{2}}}\)
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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313061
Which of the elements whose atomic numbers are given below, cannot be accommodated in the present set up of the long form of the periodic table?
1 107
2 118
3 126
4 102
Explanation:
The present long form of the periodic table contains elements with atomic number 1 to 118 only (in total 7 periods).
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313062
Similarity in chemical properties of the atoms of elements in a group of the periodic table is most closely related to:
1 Atomic numbers
2 Atomic masses
3 Number of principal energy levels
4 Number of valence electrons
Explanation:
If elements are arranged in order of their increasing atomic numbers, elements coming at intervals of 2, 8, 8, 18, 18, 32 and 32 will have similar physical and chemical properties and thus grouped in one particular group.
JEE - 2014
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313063
The plot of square root of frequency of X-rays emitted against atomic number led to the suggestion of which law (rule)?
1 Mendeleev's periodic law
2 Modern periodic law
3 Hund's rule
4 Newland's law
Explanation:
Moseley gave the modern periodic law. He showed that atomic number is more fundamental property of an element than its atomic mass.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313064
\(_{{\rm{92}}}^{{\rm{238}}}{\rm{U}}\) (IIIB) changes to \(_{{\rm{90}}}^{{\rm{234}}}{\rm{Th}}\) by emission of \({\rm{\alpha - }}\) particle. "Th" element will be in ______ group.
1 IIIB
2 IB
3 VB
4 IIA
Explanation:
Conceptual Questions
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313065
The element which does not belong to group 15 is
1 As
2 P
3 Bi
4 Se
Explanation:
The element which does not belong to group 15 is Se (selenium). It belongs to group 16 of the periodic table. It resides in 4th period and 16th group having atomic number 34. Electronic configuration of Se is \({\rm{4}}{{\rm{s}}^{\rm{2}}}\,{\rm{4}}{{\rm{p}}^{\rm{2}}}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313061
Which of the elements whose atomic numbers are given below, cannot be accommodated in the present set up of the long form of the periodic table?
1 107
2 118
3 126
4 102
Explanation:
The present long form of the periodic table contains elements with atomic number 1 to 118 only (in total 7 periods).
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313062
Similarity in chemical properties of the atoms of elements in a group of the periodic table is most closely related to:
1 Atomic numbers
2 Atomic masses
3 Number of principal energy levels
4 Number of valence electrons
Explanation:
If elements are arranged in order of their increasing atomic numbers, elements coming at intervals of 2, 8, 8, 18, 18, 32 and 32 will have similar physical and chemical properties and thus grouped in one particular group.
JEE - 2014
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313063
The plot of square root of frequency of X-rays emitted against atomic number led to the suggestion of which law (rule)?
1 Mendeleev's periodic law
2 Modern periodic law
3 Hund's rule
4 Newland's law
Explanation:
Moseley gave the modern periodic law. He showed that atomic number is more fundamental property of an element than its atomic mass.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313064
\(_{{\rm{92}}}^{{\rm{238}}}{\rm{U}}\) (IIIB) changes to \(_{{\rm{90}}}^{{\rm{234}}}{\rm{Th}}\) by emission of \({\rm{\alpha - }}\) particle. "Th" element will be in ______ group.
1 IIIB
2 IB
3 VB
4 IIA
Explanation:
Conceptual Questions
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313065
The element which does not belong to group 15 is
1 As
2 P
3 Bi
4 Se
Explanation:
The element which does not belong to group 15 is Se (selenium). It belongs to group 16 of the periodic table. It resides in 4th period and 16th group having atomic number 34. Electronic configuration of Se is \({\rm{4}}{{\rm{s}}^{\rm{2}}}\,{\rm{4}}{{\rm{p}}^{\rm{2}}}\)