Question

How does the number of protons in the nuclei changes as we move from left to right along the period?

Answer 1

Hey mate!!☺
Here's your answer ^_^

The number of protons in the nuclei INCREASES as we move from left to right across a period....!


Hope this helps!!❤

Answer 2

here is your answer OK☺☺☺☺



Nuclear charge dominates whilst adding electrons to the same shell. The net result is atomic contraction across a period.
Explanation:
This is a very important periodic phenomenon: the contraction of atomic radii across the period. While as we add to Z (the number of protons in the nucleus), we also add another electron (and charge is therefore kept neutral), the increased nuclear charge acts disproportionately on the valence electrons, and contracts this shell.