Why does the first ionization energy increases as we go from left to r

1.	Why does the first ionization energy increases as we go from left to right along the given period of periodic table?
Answer» ANSWER: due to the INCREASE of EFFECTIVE nuclear CHARGE and small size

Why does the first ionization energy increases as we go from left to right along the given period of periodic table?

Answer»

due to the INCREASE of EFFECTIVE nuclear CHARGE and small size