Question

which information about an atom can a period number give you
A: how many energy levels it has
B: the ionic charge it forms
C: how many bonds it will make
D: the number of valence electrons it has

Answer 1

The correct answer is:

A: how many energy levels it has

The period number of an element in the periodic table indicates the highest energy level of electrons in that atom. For example, elements in Period 1 have one energy level, those in Period 2 have two energy levels, and so on. The period number does not directly indicate the ionic charge, the number of bonds it will make, or the number of valence electrons.