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7. Calculate the energy of the 2nd energy level in the Bohr model of an atom. 8. Determine the energy given off by an electron transitioning between the fourth and the first energy levels. What wavelength does this correspond to? What is (Delta ...
In chemistry, what is an osmole? What does the term chemical shift mean? For a student to understand chemistry as a subject, he or she must first understand the definition of chemistry. Define the word "chemistry" in your own words. Explain what is the meaning of activation energy ...
What is meant by first ionization energy? (a) What does a negative electron affinity mean? (b) What does a positive electron affinity mean? Complete the following statement. The lowest energy state of an atom is called its state. What is electron affinity? Explain it. Identify the element...
The lowest energy shell, which is closest to the nucleus, is called the K-shell and can only fit two electrons. Once the K-shell is filled, any subsequent electrons go first into the L-shell, which can hold 8 electrons, then the M-shell which can hold 18 electrons, then the N-shell...
"Much later, when I discussed the problem with Einstein, he remarked that the introduction of the cosmological term was the biggest blunder he ever made in his life. But this “blunder,” rejected by Einstein, is still sometimes used by cosmologists even
If you do any research first, you will find doctors disagree with you highly. Do you have more wisdom and insight than a trained professional who went to eight years of school? Water is the cause of many different illnesses. If not, why is there a disclaimer on all water reports to see...
1. What is a Circuit Breaker? First mentioned by Thomas Edison in his 1879 patent application, the concept of the circuit breaker was later advanced when the Swiss company Brown, Boveri & Cie. patented the world’s first miniature circuit breaker (MCB) in 1924. Circuit breakers are essential...
The motion of objects without looking at causes of the motion is studied in one area of physics known as kinematics. Here, the motion of object is characterized by a number of quantities such as displacement, velocity and acceleration. If one considers the motion and causes of motion, then ...