A radioactive substance is oxidised. What changes would you expect to take place in the nature of radioactivity ? Explain your answer.

A certain nucleus X has a mass number 14 and atomic number 6. The nucleus X changes to ""_(7)Y^(14) after the loss of a particle. A radioactive substance is oxidized. What change would you expect to take place in the nature of its radioactivity ? Give a reason for your answer.

a metal solid cylinder tied ot a thread is hanging from the hook of a spring balance. The cylinder is gradually immersed into water contaned in a jar. What changes do you expect in the readings of spring balance? Explain your answer.

A radioactive substance is being consumed at a constant of 1 s^(-1) . After what time will the number of radioactive nuclei becoem 100 . Initially, there were 200 nuceli present.

What percentage of decay takes place in the average life of a substance ?

What kind of changes are take place during photosynthesis?

What changes would you suggest in your home in order to be environment-friendly?

What measure would you take to prevent water-borne diseases?

What measure would you take to prevent water-borne diseases?

What is the end product of natural radioactive series?

What measures would you take to conserve electricity in your house?