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

Because art is ____________, people sometimes disagree about whether something is a work of art. (Select the best answer.) a. imaginative b. Creative c. subj

What is the simplified form of 3abc/abc, when abc does not equal zero? Explain using the properties of real numbers.

what is the greatest common factor of 42 and 90 and 81

what is the base or root word of inhospitable

Why was the pharaoh's authority never questioned

what is the definition for the word theory

Is 0.73 greater than 0.75

Which is the BEST explanation of Karma according to the Hindu faith? a. the religious duty one has to their fellow religious followers b. one's actions in thi

there are 60 twins in the town skip count how many pairs of twins are in the town

Which describes a major challenge facing the builders of the transcontinental railroad?