Question

in general, the first ionization energy increases as you move from left to right across the third period. explain why this is by completing the statements below. match the words in the left column to the appropriate blanks in the sentences on the right. make certain each sentence is complete before submitting your answer. view available hint(s) atomic number decreases less the concept of shielding the concept of penetration atomic mass coulombs law increases more the periodic law moving from left to right across across period 3, electrons populate the same shell (3s and 3p subshells), and the increase in signifies that the force of attraction will increase according to because the the distance between the nucleus and outermost electrons therefore, ejecting the outermost electrons requires energy as you move right across the periodic table.

Explanation:

As you move from left - right across period 3, electrons are in the same shell. The atomic number increases, meaning more protons in the nucleus. According to Coulomb's law, the force of attraction between the nucleus and outermost electrons increases as the distance between them doesn't change significantly (since in the same shell). So, more energy is required to eject the outermost electrons.

Answer:

Moving from left to right across period 3, electrons populate the same shell (3s and 3p subshells), and the increase in atomic number signifies that the force of attraction will increase according to Coulomb's law because the the distance between the nucleus and outermost electrons decreases. Therefore, ejecting the outermost electrons requires more energy as you move right across the periodic table.