Chemistry · Structure of atom

Calculate the de Broglie wavelength of an electron moving with a velocity of \( 1.0 \times 10^7 \text{ m s}^{-1} \) (mass of electron \( m_e = 9.1 \times 10^{-31} \text{ kg} \), \( h = 6.626 \times 10^{-34} \text{ J s} \)).

1. A
   \( 1.28 \times 10^{-10} \text{ m} \)
2. B
   \( 7.28 \times 10^{-11} \text{ m} \)
3. C
   \( 3.14 \times 10^{-10} \text{ m} \)
4. D
   \( 5.62 \times 10^{-12} \text{ m} \)