Question

question 1 4 pts which statement best explains how periods on the periodic table are organized? decreasing atomic mass number from left to right increasing number of neutrons from left to right increasing atomic number from left to right decreasing number of electrons from left to right

Explanation:

In the periodic table, periods are rows. Elements in a period are arranged in order of increasing atomic number (number of protons) from left - to - right. Atomic mass number is not the organizing principle for periods. The number of neutrons does not determine the order in a period. The number of electrons increases from left to right in a period for neutral atoms as the atomic number increases.

Answer:

increasing atomic number from left to right