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

To test how fertilizer affects tomato plants, a farmer divided a field of young tomato plants into 10 plots of equal size. The farmer then put fertilizer on hal

The equation y = 43x represents the number of miles Alicia drives over time, where y is the number of miles and x is time in hours. The table (shown in picture)

How can you use Columbian Exchange in a sentence

How do you get answer for 4/5% of 500 equals what?

Can anyone give some more reasons as to why William Duke of Normandy believed he should be king?

who opposed the loaning of money at interest? a.the catholic church b.king edward c.king john d.commoners

Express the part of total lifetime for each object in Table 1 as a fraction in simplest form

Convert 29 inches to feet. Round answers to the nearest tenth

-9x-5+6x=19 solve for x

how do catalysts speed up reactions please help quickly