Niels Bohr promoted the connection between the periodic table and quantum theory.Which of the following statements is INCORRECT?
A)The link between the table arrangement and quantum theory is electron configuration.
B)Elements in the same group have similar electron configurations.
C)Elements in the same group have the same number of electrons in the outer orbit.
D)Elements in the same group have the same principle quantum number.
E)Elements in the same group have the same number of valence electrons.

Question

Quizplus · Accepted Answer

Elements in the same group do not necessarily have the same principle quantum number, as the number of energy levels each element has differs even within a group. The other statements are correct, with A explaining the connection between the periodic table and electron configurations, B and E pointing out similarities between elements in the same group, and C stating that the number of valence electrons is the same for elements within a group.

Niels Bohr Promoted the Connection Between the Periodic Table and Quantum