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 value of c makes the polynomial below a perfect square?

What kind of technology did the Mali Empire use ?

What was one difficulty France faced after the revolution? high taxes from the National Assembly threats from other European countries a leader who wanted a new

Answer:the largest angle has a measure of ____degrees.

Thank you please help if you can

what's the main purpose of a personality test?

Please answer this question asap.

Read the excerpt from Monster. STEVE I don’t remember seeing him play ball. PETROCELLI You having trouble remembering what you’ve seen? STEVE No, but I’ve seen

A triangular pyramid has a base shaped like an equilateral triangle. The legs of the equilateral triangle are all 7 feet long, and the height of the equilateral

What legislative proposals set forward by President Truman built African American political support?