How Many Valence Electrons Are There in an Atom with the Electron

question 30

Multiple Choice

How many valence electrons are there in an atom with the electron configuration [noble gas]ns²(n −1) d¹⁰np³?

• A)2
• B)3
• C)5
• D)10
• E)15

---

Definitions:

Shoulder Extension

Movement of the arm away from the body in the sagittal plane, increasing the angle between the arm and the side of the body.

Lesser Trochanter

A small, bony protrusion located on the femur near the hip joint, serving as an attachment point for muscles.

Greater Trochanter

A prominent area of bone located at the upper part of the femur, serving as a major site of muscle attachment.

Head of Femur

The rounded, upper part of the thigh bone that fits into the hip socket forming the hip joint.