Question

mass of an electron is x times to the mass of a hydrogen atom. the approx. value of x is

Answer 1

Mass of an electron = 9.1 × 10⁻³¹ kg

Mass of Hydrogen atom = 1.67 × 10⁻²⁷ kg

According to the question,

Mass of the Electron = x × Mass of he Hydrogen atom

⇒ 9.1 × 10⁻³¹ = x × 1.67 × 10⁻²⁷

⇒ x = 9.1/1.67 × 10⁻⁴

⇒ x = 5.44 × 10⁻⁴

∴ x ≈ 5 × 10⁻⁴

Hence, the Approximate value of the x is 5 × 10⁻⁴.

Hope it helps.