Question

Elements are arranged in groups by similar atomic structure on the periodic table. This allows for an element's properties to be predicted based on general periodic trends. One of these trends, energy levels, increase ___________.
A) down a group
B) down a group and to the left along a period
C) up a group and to the right along a period
D) up a group and to the left along a period

Answer 1

The answer is C because of the ionization energy trend