A. Geiger counter
B. Photographic film
C. Scintillation counter
D. none of these
E. radiotracer
Also…..
Which of the following correctly represents the tranmutation in which a curium-242 nucleus is bombarded with an alpha particle to produce a californium-245 nucleus?
A. (242/96)Cm (4/2He, 1/0n) 245/98Cf
B. 242/96 Cm (4/2He, 1/1p) 245/98 Cf
C. 242/96 Cm( 4/2He, 1/-1e) 245/98 Cf
D. 242/96 Cm (1/0n, 4/2 He) 245/98 Cf
E. 242/96 Cm (4/2 He, 2 1/1p) 245/98 Cf
The nuclear disintegration series of_______is the source of radon-222 in the soil.
A. 235-U
B. 238-U
C. 236-Pb
D. 235-Th
E. 14-C
I think its B. What do you think?
In the nuclear transmutation represented by 239/94 Pu (4/2 He, 1/0 n) what is the product?
A. uracnium-242
B. curium-245
C. curium-242
D. uranium-245
i think its C…what do you think?
Thanks so much!!!
2 Answers
-
Lancenigo di Villorba (TV), Italy
QUESTION n.1
“Which of the following devices converts radioactive emissions to light for detection?”
MY HINT IS :”E. radiotracer”
QUESTION n.2
“Which of the following correctly represents the tranmutation in which a curium-242 nucleus is bombarded with an alpha particle to produce a californium-245 nucleus?”
MY HINT IS :”A. (242/96)Cm (4/2He, 1/0n) 245/98Cf”
You have to verify
ATOMIC MASS SUM :”242 + 4 = 1 + 245″
ATOMIC NUMBER SUM :”96 + 2 = 96 + 0″
QUESTION n.3
“The nuclear disintegration series of_______is the source of radon-222 in the soil.”
MY HINT IS :”B. 238-U”
YOU HAVE TO EXECUTE ONE Alpha-Decay
(238/92)U (–, 4/2 He) (234/90)Th
FOLLOWED BY Beta-Decay
(234/90)Th (–, 1/-1e) (234/91)Pa
AND YOU CONTINUE BY OTHER THREE TIMEs DESCENDING TO RADON (222/86)Rn.
QUESTION n.4
“In the nuclear transmutation represented by 239/94 Pu (4/2 He, 1/0 n) what is the product?”
MY HINT IS :”C. curium-242″
You have to verify
ATOMIC MASS SUM :”239 + 4 = 1 + 242″
ATOMIC NUMBER SUM :”94 + 2 = 96 + 0″
I hope this helps you.
-
C. a scintillation counter measures ionizing radiation through the use of an intermediate scintillator (solid or liquid) which generates photons of light in response to incident radiation.
Source(s): Brown, LeMay, et. al. Chemistry – The Central Science 13th Edition
