## Question

### Solution

Correct option is One alpha particle, atomic number dereases by 2 and mass number by 4 and one beta particle will increases atomic number by 1

#### SIMILAR QUESTIONS

Q1

The mass of one mole of electrons is

Q2

The increasing order for  the values of e/m is

Q3

The total number of neutrons in dipositive zinc ion with mass number 70 is

Q4

A radioactive nucleus is leing produed at a constant rate  per second. Its decay constant is λ. If No. are the number of nuclei at time t = 0, then  themanimum no, of nuclei

Q5

A radioactive sulestance has a half–life of four months three fourth of thesulestance will decay in

Q6

Half life of radium is 1600 yrs. Its average life is

Q7

What percentage of original radioactive atoms is left after four half lives

Q8

No atoms of radioactive element emit N2 beta particles per second. The decay constant of element in sec–1 is

Q9

A radioactive element has half life period 800 yrs. After 6400 yrs what amount will remain

Q10

A sample of a radioactive element has a mass of 10g at an instant t = 0. The oppropriate mass of this element in the element in the sample after two mean lives is