Decáy constant of radium is . By a suitable process its compound radium bromide is obtained. The decay constant of radium bromide will be

Step-by-step solution

Many nuclei are radioactive. This means that they are unstable like radium and will eventually decay by emitting as particle transforming the nucleus into another nucleus. A chain of decays take place until a stable nucleus is reached. In the compound radium bromide, radium is radioactive while bromide is not, hence decay constant of compound is same as that of radium that is .