The Zirconium Nucleus Contains 40 Protons,and an Electron Is 1

question 38

Multiple Choice

The zirconium nucleus contains 40 protons,and an electron is 1.0 nm from the nucleus.What is the electric force on the electron due to the nucleus? ( e = 1.60 × 10^-19 C,k = 1/4πε₀ = 9.0 × 10⁹ N ∙ m²/C²)

• A)2.9 nN
• B)1000 C
• C)3.7 nN
• D)6.8 nN
• E)9.2 nN