a让我难过的人 ,我会让你好过吗? Let my sad person, I can let you feel better?[translate] ahow many electrons are there in an iron atom? 多少个电子有没有在铁原子?[translate]
How many unpaired electrons are there in a strong field iron(II) octahedral complex? (a) 0 (b) 1 (c) 2 (d) 4 (e) 6 Strong and Weak Field Complexes: The coordinated complexes are differentiated on the basis of the nature of the ligand pr...
Let's start with a look at how household batteries function. Most batteries have two easily identifiable poles, a positive and a negative. When the battery isn't in use, electrons collect at the negative pole. When you insert the batteries into a device, the two poles come into contact wi...
While this is happening, the moving electrons also create a magnetic field. If you take the batteries out of your remote, it will likely retain a small magnetic charge. You couldn't pick up a car with your remote, but maybe you can pick up some small iron filings or even a paper clip...
Resistance is central to traditional soldering irons and to the Cold Heat iron. Electricity moves more easily through substances with lots of free electrons, like copper, than it does through substances with fewer free electrons, like carbon. In other words, substances like carbon have greater resi...
those little bits of metal into a proper Mohawk haircut is due to the movement of electrons. Move a magnet toward a paper clip and you'll force the electrons in the clip to move. Similarly, if you allow electrons to move through a metal wire, a magnetic field will form around the ...
Explain. Why are electrons affected by the addition of heat, light, or electricity but protons and neutrons are not? The iron formed in a blast furnace is called pig iron, which contains impurities that make the metal brittle. What are these impurities, and how did they come ab...
Once that's done, it can be electroplated just like a metal. Depending on how much wear and tear the plated part has to withstand, the coating can be anything from about 10–30 microns thick.Why use electroplating?Photo: This car wheel is made from aluminum metal plated with nickel in ...
If one of the electrons in a pair spins upward, the other spins downward. It's impossible for both of the electrons in a pair to spin in the same direction. This is part of a quantum-mechanical principle known as the Pauli Exclusion Principle. Even though an atom's electrons don't ...
When current flows in a wire, a magnetic field is created around the wire. From this it has been inferred that magnetic fields are produced by the motion of electrical charges. A magnetic field of a bar magnet thus results from the motion of negatively charged electrons in the magnet. ...