Of the following elements, which would you expect to have the lowest ionization energy? Which would have the highest? K, F, Mg Step 1:Determine the effective nuclear charge for each element. Potassium has 19 protons and 18 core electrons, so the effective nuclear charge is...
Understand that isotopes of an element have different mass numbers but the same number of protons. Using the Periodic Table, find the atomic number of the element. The atomic number equals the number of protons. In a balanced atom, the number of electrons equals the number of protons. In an...
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...
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...
Most of us don't think about what's going on inside a copier while we wait for it to shoot out the copies. Find out how, in mere seconds, you can produce an exact replica of what's on a sheet of paper!
The voltage and current that is needed to activate the armature The maximum voltage and current that can run through the armature and the armature contacts The number of armatures (generally one or two) The number of contacts for the armature (generally one or two -- the relay shown here ha...
An atom's core contains 16 neutrons and possesses a total electrical charge. 1. What is the atomic number of the atom? 2. What is the number of nucleons(mass)? 3. How many electrons are in the electronic mantle? How many lone pairs of electrons are on the central I atom in I3-?
Most of us don't think about what's going on inside a copier while we wait for it to shoot out the copies. Find out how, in mere seconds, you can produce an exact replica of what's on a sheet of paper!
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 to this Question How many valence electrons are in each of the following atoms? a. Mg b. C c. Br d. Cs ...
A driver might be found to have a level of 0.15, for example, while the legal limit is 0.08. To comprehend how we can gain access to such precise numbers, we have to ask ourselves: how does a breathalyzer work? What do those figures mean? And how do police officers find out if ...