Answered

IDNLearn.com is your go-to platform for finding accurate and reliable answers. Get accurate and comprehensive answers to your questions from our community of knowledgeable professionals.

Using general trends, predict the stability of the following nuclei.

a. silicon-28
b. arsenic-82
c. radium-228
d. zinc-64
e. potassium-40

Sagot :

Manethoidn

Answer:

stable nuclei are silicon-28, zinc-64 ,  potassium-40

while unstable one are arsenic-82 , radium-228

Explanation:

There is rule to predict stability of a nuclei that is

Z <= 20 N/Z = 1  most stable

Z = 20-40 N/Z = 1.25 stable

Z = 40-80 N/Z = 1.80  less stable

Z >= 83,  nucleus becomes unstable or radioactive

Here, N/Z  = no. of neutrons/ No. of protons

1. silicon-28 , N/Z =14/14 = 1 stable

2. arsenic-82, N/Z = 49/33 = 1.48 (unstable)

3. Potassium-40 , N/Z = 21/19 = 1.10(stable)

4. zinc-64, N/Z =34/30 = 1.13 (stable)

5. radium-228  (unstable, radioactive)

Therefore, stable nuclei are silicon-28, zinc-64 ,  potassium-40

while unstable one are arsenic-82 , radium-228

We appreciate your contributions to this forum. Don't forget to check back for the latest answers. Keep asking, answering, and sharing useful information. Your questions find answers at IDNLearn.com. Thanks for visiting, and come back for more accurate and reliable solutions.