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

The specific details of a job offer, such as working hours, salary or wages, and fringe benefits. a. job interview 0 b. appraise 0 0 C. body language 0 d. none

Luther blasted Tetzel and the Church for selling a piece of paper that in reality did nothing. Luther accused Pope Leo of taking advantage of the poor in an eff

H (-8, -2) y=23x+1 what is the equation of the line through point H and parallel to the given line? How did u get it?

What’s the piremeter of a polygon

5. Compare 1/7 and 13/90

A certain manufacturer sells a television for $170. One online retailer has a standard markup of 27% and charges an additional 15% to its customers for shipping

What quantity (moles) of NaOH must be added to 1.0 L of 1.8 M HC2H3O2 to produce a solution buffered at pH = pKa? Ka = 1.8×10-5 Quantity = mol Submit b What qua

Identify the most effective approach for the given topic. The Varieties of Finches on the Galapagos Islands process definition illustrative classification/divis

NEED HELP/I can't get this wrong

Julie is preparing vegetables for dinner and accidentally cuts her finger. She washes it with soap and water before covering it with a bandage . A short while l