For the first three rows of the periodic table, elements in the same row have the same number and type of electron orbitals.

Question

Quizplus · Accepted Answer

This is true. The first three rows of the periodic table correspond to the elements filling the first three electron shells, with each row representing a new shell. Elements in the same row have the same number of electron orbitals and therefore similar chemical properties.

For the First Three Rows of the Periodic Table, Elements