20 POINT QUESTION
The image compares the arrangement of electrons in two different neutral atoms.
Which of the following best explains the position of the two atoms in the periodic table?
Both atoms have an estimated Zeff of 1; therefore, Atom D is to the right of Atom E in the same period.
Both atoms have Zeff of 1; therefore, Atom D is above Atom E in the same column because of the additional energy level.
Atom D has an estimated Zeff of 1 and is therefore to the left of Atom E, which has a Zeff of 9.
Atom D has an estimated Zeff of 1 and is therefore below Atom E in the same column, which has a Zeff of 9.
