<u>Answer</u>:
When Uranium-238 decays, it emits 8 Alpha particles and 6 beta particles before finally becoming the stable daughter product. The atomic number and mass number of the daughter product is 92 and 234 respectively.
<u>Explanation</u>:
In the process of decay of Uranium-238, it emits alpha particles, and the resultant product is Thorium-234, which turns into Protactinium-234, and this Protactinium-234 undergoes the beta decay to form the Uranium-234.
As per the question, a stable daughter product is created after the emission of alpha and beta particles, this implies that Uranium-234 is a stable product after the decay of Uranium-238. Therefore, the atomic number is 92 (number of protons) and the mass number is 234 (protons+neutrons) which is also the element of the naming.
Answer:
A. Ethiopian Highlands . . . Horn of Africa
Explanation:
- The Ethiopian highlands are a great mass of the rugged highlands in the Ethiopian that are situated around the horn regions and is the largest continuous elevated areas with a surface area of about 1,500 m and is also called the roof of the Africa due to the second-largest areal extent and is geologically 75 million years old.
The answer is C. Steel.
Steel is made from humans, the others are minerals.
