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...
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...
people use it for making steel, automobile frames and parts, building structures and tools. The iron atoms is made of 26 protons, 26 electrons and has 30 neutrons. The atom has four spherical energy levels. The first energy level has three electrons, the second has eight electrons, the thir...
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...
Laser printers also print much sharper lines and are therefore well-suited for text, logos and simple business graphics. The economical laser printers are mostly monochrome, however. Modern inkjet printers print both black and white and color these days, and they have an edge on laser printers ...
Answer to: How does nuclear fusion begin? By signing up, you'll get thousands of step-by-step solutions to your homework questions. You can also...
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]
Answer and Explanation:1 The atomic number of iron is 26. The electronic configuration is: {eq}1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^{6} {/eq} Hence, the valence...
When we switch on the power, the copper sulfate solution splits into ions (atoms with too few or too many electrons). Copper ions (which are positively charged) are attracted to the negatively charged brass electrode and slowly deposit on it—producing a thin later of copper plate. Meanwhile...
When you heat iron, the atoms inside it absorb the heat energy you supply. The electrons inside the atoms push out farther from the nucleus to soak up this extra energy. But this makes them unstable, so they quickly return to their original or "ground" state. When they do so, they ...