11. Tungesten-184 emits an alpha particle and the new nucleus formed is: A) Rehi

Question

11. Tungesten-184 emits an alpha particle and the new nucleus formed is: A) Rehinuim-184 B) Tantalum-180 C) Hafnium-180 D) Osmium-188 12. Bismuth-214 emits an alpha particle and the new nucleus formed is: A) Polonium-214 B) Thallium-210 C) Lead-210 D) Astatine-218 13. Strontium-90 emits a negative beta particle and the new nucleus formed is: A) Yttrium-90 B) Rubidium-94 C) Zirconium-90 D) Krypton-86 14. Copper-64 emits a negative beta particle and the new nucleus formed is: A) Zinc-63 B) Nickel-65 C) Nickel-63 D) Zinc-64 15. Oxygen-15 emits a positive beta particle and the new nucleus formed is: A) Carbon-11 B) Nitrogen-14 C) Nitrogen-15 D) Fluorine-19 E) Neon-21 16. Sodium-22 emits a positive beta particle and the new nucleus formed is: A) Neon-22 B) Magnesium-20 C) Magnesium-21 D) Fluorine-20 E) Neon-21

Explanation / Answer

For the given question

11. 184 Tungsten emits alpha particle, and the new nucleus is

180 - Hafnium ( reducing 2 atomic numbers and 4 mass numbers)

option c)

12. for alpha decay of 214 Bismuth

product is 210 Thallium

option b

13. strontium 90, -ve beta decay

product 90 Yttrium

hence option a.

14. Cu - 64 -ve beta decay

product

64 Zn

option D)

15. O 15 ( +ve beta decay)

product

N 15

option C)

16. Na -22 +ve beta particle

products = 22 Ne

option A

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