Question

question 5 (1 point)
how does the energy of an electron change when the electron moves closer to the nucleus?
o a it decreases.
o b it doubles.
o c it increases.
o d it stays the same.

question 6 (1 point)
what is the shape of the 3p atomic orbital?
o a bar
o b two perpendicular dumbbells
o c dumbbell
o d sphere

question 7 (1 point)
what is the maximum number of d orbitals in a principal energy level?
o a 1
o b 5
o c 3
o d 2

Explanation:

• Question 5:

Electrons in lower - energy levels (closer to the nucleus) have lower energy. As an electron moves closer to the nucleus, it moves to a lower - energy orbital. So, its energy decreases.

• Question 6:

The \(p\) orbitals (including \(3p\)) have a dumbbell - shaped.

• Question 7:

For a given principal energy level, the number of \(d\) orbitals is \(5\). The magnetic quantum number \(m_l\) for \(d\) orbitals ranges from \(- 2,-1,0,1,2\), and each \(m_l\) value corresponds to one orbital.

Answer:

• Question 5: A. It decreases
• Question 6: C. dumbbell
• Question 7: B. 5