Question

the atomic number of elements in the periodic table ____ as you go from left to right. a. increase b. decrease

Explanation:

In the Periodic Table, as we move from left to right across a period, the atomic number of elements increases. This is because the atomic number is equal to the number of protons in an atom's nucleus, and each successive element in a period has one more proton than the previous one.

Answer:

A. INCREASE