What is the energy equivalent of 1 amu? (c = 2.99792458 × 108 m/s)
A .5.0 × 10⁻¹⁹ J
B. 5.4 × 10⁴³ J
C. 6.6 × 10⁹ J
D. 1.5 × 10⁻¹⁰ J