corybaxter corybaxter

21-10-2016
Chemistry

contestada

U-236 spontaneously decays to Br-87, X and three neutrons. What is element “X”? 1. Th 2. Pb 3. Ra 4. La 5. Ba

Respuesta :

Greenleafable Greenleafable

25-10-2016

U-236 spontaneously decays to Br-87, X and three neutrons. The element X is 4. La, also known as Lanthanum, number 57 in the periodic system of elements.

Answer Link

Otras preguntas

find the area of the given shape (please help)

The scout troop have prepared sandwiches for launch OR The scout troop has prepared sandwiches for launch Note: troop is a collective noun and we must agree

Which of the following equations is written in standard form? A) 4x-2y=0 B) -8x+4y=1 C) -3y+x-4=0 D) 2+3x-6y=0

Which of the following types of patients do psychologists sometimes treat? (Choose all that apply) Animals Employees Children Babies

Which of the following could NOT own land of any kind under feudalism?

Find measurement of angle PQR

the value of 3 1/3 + 2 1/2

Calculate the power of the heater in W.

"Not never" is an example of a A. double negative B. double comparison C. double meaning

what is fiber and fabric