The half life of radium is 1620 yr and its atomic weight is 226 kg per kilo mol.

The half life of radium is 1620 yr and its atomic weight is 226 kg per kilo mol. The number of atoms that will dacay from its 1g sample per second will be (take, Avogadro’s number, Nᴀ=6.023×10²³ atom/kilo mol)

Options

(a) 3.61×10¹⁰
(b) 31.1×10¹⁵
(c) 3.6×10¹²
(d) 3.11×10¹⁵

Correct Answer:

3.61×10¹⁰

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. On observing light from three different stars P, Q and R, it was found that intensity
  2. The photoelectric threshold wevelength for potassium (work function being 2 eV) is
  3. A galvanometer having internal resistance 10Ω requires 0.01 A for a full scale
  4. Order of e/m ratio of proton, α-particle and electron is
  5. An inclined plane of length 5.60m making an angle of 45⁰ with the horizontal is placed