Answer: frequency =v/π= 3×10^8/6.9 ×10^-13=5×10^20
Explanation:) the relationship between the velocity and frequency of a wave is V=fπ ,where V=velocity of wave while the π or lander represents wavelength which was given in the question.f represents frequency of wave.velocity of waves differs,e.g sound waves has a velocity of 330m/s while electromagentic spectrum waves eg UV,infrared has a constant velocity called velocity of light =3×10^8.the question did not clarify the type of wave so I assumed it should be light. Which has a V= 3×10^8.so frequency was calculate d using velocity divided by wavelength (which. Was given).
The question is
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<span>An ordinary nickel contains about 10²⁴ electrons, all repelling one another.why don't these electrons fly off the nickel?</span><span />
Answer:
You must know that to analyze the behaviour of the electrons in an atom, you must think in terms of quantum theory, not just electrostatic force.
Electrostatic considerations also is handled because the protons in the nucleus of an atoms have postive charge and they attract the electrons keeping the neutrality of the atom (same number of positive and negative charges in each atom).
Nevertheless, the "position" of the electrons in the atom is explained by the quantum theory in terms of levels of energy.
The electrons occupy orbitals (regions around the nucleus of the atom) following three rules:
1) The electrons will occupy the lower energetic level available. In principle they have these order (from lower energy to greater energy): 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 7p, with some variatons and exceptions.
2) Pauli's exclusion principle
At most two electrons may occupy one same atom orbital.
3) Hund's rule
Electrons with the same spin will occupy first all the orbitals with the same energy level. And this is precisely related with the repulsion force that two netatively charged particles exert on each other.<span />
Answer:
the rock has a greater amount of heat energy which transfers to water causing vaporization.
Yes. You should probably get it fixed
It seems like I begin to forget whole organic Chemistry. Anyway, the answer is 2-methylheptane-3-yne.
To build a name for this molecule, you need to:
1. Determine where there is the lowest chain beginning with the double, triple bond, or there is other thing for other types of organic molecules.. In this case you have one triplet bond, and the lowest chain there is the one that is below the bond.
2. In this small chain you see one "forks": CH3 and another CH3 go from the one CH. Put number 1 where there are the most number of such compounds, in this case it doesn't matter because we have one CH3 in one way and one CH3 in the another.
3. Determine the largest chain which surely has the triple bond. Put the numbers from 2 to the final beginning with CH3 where you put number 1. Your largest chain consists of 7 particles CH3, CH2, and CH.
4. You see that you also have one unnamed particle, the one which is "the other way" when you are in the CH which is below the triple bond on the picture. Its name will be 2-methyl because it is connected with particle #2 and it consists only of one carbon. If there were 2, it would be ethyl, and so on.
5. Finally, let's write a full name: put 2-methyl first, "2-methyl." Then, write a full name for the chain of 7 carbons, which has to be heptane, if it had 5, you would name it pentane, ethane, and so on. So, we have "2-methylheptane." Finally, you see that you have a triple bond after the carbon #3. Put a dash and the number of this carbon. "2-methylheptane-3" you should have. Since it is alkyne (organic molecule with one triple bond), you have to write "yne" at the end.
the final name is "2-methylheptane-3-yne." You can answer the question "explain your naming process" by using the answer I provided. Hope it helps. Good luck!