ZitaMaldonado ZitaMaldonado

04-06-2015
Chemistry

contestada

Which radioisotope is a beta emitter?(1) 90Sr (3) 37K(2) 220Fr (4) 238U

Respuesta :

lulu1991 lulu1991

18-06-2015

The answer is (1) 90 Sr. The definition of beta decay is that a type of radioactive decay in which one proton will change to one neutron and release one electron inside the nucleus. And 90Sr is a common beta emitter.

Answer Link

Otras preguntas

what does point of view mean?

ASK A QUESTION There are 4 queens in a standard deck of 52 cards. You pick one card at random. What is the probability of not picking a queen?

Is more time and money spent on business-to-business marketing or marketing to consumers?

Are the figures similar?

people who felt constitutional covention should not have created a new government were called

How to do this ? Don’t understand it

How do objects from space makeup the ocean?

The Constitutional Convention of 1787 in Philadelphia was made up of 55 men who drafted the U.S. Constitution. Which of the following was a major topic of debat

Use the word " heroes' " in a sentence.

A baseball team played 140 regular season games. The ratio of the number of games they won the the number of games they lost was 5/2. How many games did they wi