8) If one mole of carbon contains x atoms then number of atoms in 12g of Mg are 0.5x
1.5x
2x
x
​

Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)