Atomic StructureHard
Question
If the radioactive decay constant of radium in 1.07 × 10-4 4 per year. Them its half life period approximately is equal to:
Options
A.5000 years
B.6500 years
C.7000 years
D.8900 years
= 6500 yearsMore Atomic Structure Questions
The pressure exerted by an electromagnetic wave of intensity I (watt/m2) on a non-reflecting surface is :[c is the veloc...In an n-p-n transistor circuit, the collector current is 10 mA. If 90 % of the electrons emitted reach the collector...The energy of an electron in an orbit of the Bohr's atom is $- 0.04E_{0}eV$ where $E_{0}$ is the ground state energy. If...The ground state energy of hydrogen atom is -13.6eV. What is the potential energy of the electron in this state?...A light emitting diode (LED) has a voltage drop of 2 volt across it and passes a current of 10 mA.When it operates with ...