Isotopes

Which of the following are the characteristics of isotopes of an element? (i) Isotopes of an element have same atomic masses. (ii) Isotopes of an element have same atomic number. (iii) Isotopes of an element show same physical properties. (iv) Isotopes of an element show same chemical properties.

Define Isotope

Assertion : Isotope is possible because of the using a mass spectrometer. Reason : Separation of isotope is possible because of the difference in electron number of isotope.

What is Isotope?

The isotope of ""_(92)U^(238) decays by alpha -emission to an isotope of thorium (Th). The thorium isotope decays by beta -emission to an isotope of protactinium (Pa). Write down the equation to represents these two nuclear charges.

The half life of a radio isotope is 3h. The mass of the isotope at time t=0 is 160 gm. What is the mass of the isotope left after 15 h ?

Define isotopic number. Calculate the isotopic numbers of hydrogen-3 and chlorine-37