Question

question 5 (1 point)
which general trends in ionization energy and electronegativity values are
demonstrated by group 15 elements as they are considered in order from top to
bottom?
o a
the ionization energy decreases and the electronegativity decreases.
o b
the ionization energy decreases and the electronegativity increases.
o c
the ionization energy increases and the electronegativity decreases.
o d
the ionization energy increases and the electronegativity increases.

Explanation:

As we move down Group 15 (Nitrogen family: N, P, As, Sb, Bi), the atomic size increases. The outermost electrons are more shielded from the nuclear charge. Ionization energy is the energy required to remove an electron. With increased shielding and larger atomic size, it becomes easier to remove an electron (so ionization energy decreases). Electronegativity is the tendency to attract shared electrons. Larger atoms have less effective nuclear pull on shared electrons, so electronegativity also decreases.

Answer:

a. The ionization energy decreases and the electronegativity decreases.