The p block elements in the third row of the periodic table (Al–Cl) release more energy when an elec — Atomic Structure Chemistry Question
Question
The p block elements in the third row of the periodic table (Al–Cl) release more energy when an electron is added to the gas phase atoms than do their lighter congeners (B–F). Which is the best explanation for this phenomenon?
A.
The heavier elements have more protons in their nuclei and have a greater electrostatic attraction to the electrons.
B.
The heavier elements have more neutrons in their nuclei and have a greater gravitational attraction to the electrons.
C.✓ Correct
The 3p orbitals are larger and have less electron-electron repulsion.
D.
The 3p orbitals have more nodes and accept electrons at lower energy.
💬
Still have doubts about this question?
Practice more questions like this, completely free.