Which of the following statement (s) about the Modern Periodic Table are incorrect
(i) The elements in the Modern Periodic Table are arranged based on their decreasing atomic number.
(ii) The elements in the Modern Periodic Table are arranged based on their increasing atomic masses.
(iii) Isotopes are placed in an adjoining group (s) in the Periodic Table.
(iv) The elements in the Modern Periodic Table are arranged based on their increasing atomic number.
Which of the following statement (s) about the Modern Periodic Table are incorrect
(i) The elements in the Modern Periodic Table are arranged based on their decreasing atomic number.
(ii) The elements in the Modern Periodic Table are arranged based on their increasing atomic masses.
(iii) Isotopes are placed in an adjoining group (s) in the Periodic Table.
(iv) The elements in the Modern Periodic Table are arranged based on their increasing atomic number.
The correct option is B (i), (ii) and (iii)
Explanation for the incorrect options:
(B) (i), (ii) and (iii)
- (i) - The Modern Periodic Table arranges the elements in order of increasing atomic number rather than according to their decreasing atomic number.
- (ii) - Instead of being grouped in order of increasing atomic number, the elements in the Modern Periodic Table are arranged according to their rising atomic weights.
- (iii) -Isotopes are listed separately in the contemporary periodic table despite having identical valence electrons and electrical structures.
Explanation for the correct options:
(D) (iv) only
- The elements are listed in the Modern Periodic Table according to increasing atomic number.
- The number of protons in the atom's nucleus is indicated by the atomic number.
- The number of electrons surrounding the nucleus is dependent on the number of protons.
Hence, option (B) is incorrect., Isotopes are positioned in an adjacent group (s) in the Periodic Table, which is erroneous regarding the Modern Periodic Table, and the elements in the Modern Periodic Table are organized based on their increasing atomic masses and decreasing atomic numbers, respectively.
(i), (ii) and (iii)
Explanation for the incorrect options:
(B) (i), (ii) and (iii)
- (i) - The Modern Periodic Table arranges the elements in order of increasing atomic number rather than according to their decreasing atomic number.
- (ii) - Instead of being grouped in order of increasing atomic number, the elements in the Modern Periodic Table are arranged according to their rising atomic weights.
- (iii) -Isotopes are listed separately in the contemporary periodic table despite having identical valence electrons and electrical structures.
Explanation for the correct options:
(D) (iv) only
- The elements are listed in the Modern Periodic Table according to increasing atomic number.
- The number of protons in the atom's nucleus is indicated by the atomic number.
- The number of electrons surrounding the nucleus is dependent on the number of protons.
Hence, option (B) is incorrect., Isotopes are positioned in an adjacent group (s) in the Periodic Table, which is erroneous regarding the Modern Periodic Table, and the elements in the Modern Periodic Table are organized based on their increasing atomic masses and decreasing atomic numbers, respectively.
