<u><em>China financed a large new fleet sent out to trade and build contacts under the command of Zheng He.</em></u>
Answer: Option C
<u>Explanation:</u>
- Ming dynasty is the one and only first Chinese dynasty that showed interest in trading with other countries. Zheng He was a great sea explorer who is also a fleet commander.
- He established trades with many foreign countries. He served under the third Emperor Yongle whose reign was between 1402 to 1424. He built big ships (some families can live in) also named them as Junk to travel in the sea.
- That made the Ming Dynasty earn more money. Ming Dynasty was interested only trading with Portuguese and Spain but most of the Europeans wanted to trade wit Asia for spices and teas.
- When Yongle died the funding for the travel was stopped and that was the end of the Ming Dynasty's International trade through seas.
<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.
