The noble gases are outliers because their atoms already have the maximum number of electrons, and therefore they don't exchange with other elements. At least, not on Earth they don't, but scientists are discovering that noble gases behave differently in space. The impossible molecules scientists...
In general, the point of a relay is to use a small amount of power in the electromagnet -- coming, say, from a small dashboard switch or a low-power electronic circuit -- to move an armature that is able to switch a much larger amount of power. For example, you might want the el...
"And that's where it's very uncertain that that can be done. That's why we would like to do an experiment to find out." Together with the cooperation of Boeing, Goodwin is seeking funding from NASA to perform such an experiment. The key to the system is the solid-state switch that...
That cost is often passed on to the consumer in the product's price. If "brand name" is important to your image, then buying a brand name is important. However, it is possible to find high-quality sunglasses that don't have a brand-name price. Shops like REI often sells store-brand...
Step 1: Identify the given chargeThe charge of the oil drop is given as:q=6.39×10−19C Step 2: Know the charge of a single electronThe charge of a single electron is:e=1.6×10−19C Step 3: Use the formula to find the number of electronsThe total charge q can be expressed in...
In order to find how many electrons an atom has, you simply look at the atomic number. The number ofelectrons = the atomic number. Chlorine for example has an atomic number of 17. That means it has 17 electrons. Whether or not chlorine will lose or gain electrons depends upon how these...
To find out what the unit is capable of, you need to check out its Underwriters Laboratories (UL) ratings. UL is an independent, not-for-profit company that tests electrical and electronic products for safety. If a protector doesn't have a UL listing, it's probably junk; there's a ...
There are holograms on most driver's licenses, ID cards and credit cards. If you're not old enough to drive or use credit, you can still find holograms around your home. They're part of CD, DVD and software packaging, as well as just about everything sold as "official merchandise...
Determine the atom based on the electron configuration [Ar]4s^2 3d^5 4p^1. Determine the atom based on the electron configuration 1s^2 2s^2 2p^6. How to find number of electrons emitted based on energy? Write the electron configuration for the atom. Then explain the distr...
Valence Electrons | Definition, Role & Examples from Chapter 3 / Lesson 3 407K Learn about valence electrons and how to find the number of valence electrons on the periodic table. Discover the role of a valence electron in an atom. Related...