The electronic configuration of an atom is written by listing all the occupied subshells with their number of electrons in superscript. For example, the electronic configuration of hydrogen (H) with one electron is 1s^1; the electronic configuration of helium (He) with two electrons is 1s^2; ...
When we go down a group, the number of valence electrons remains the same, although the number of shells increases. While valence electrons across a period incrementally climb by one, the number of shells remain the same. The period number (row number, to remind you) in which an eleme...
Atoms have a desire to lose or gain an electron in order to be stable. Once they've either gained or lost some electrons, they have charge associated with them since their electron and proton numbers no longer balance out. But what determines what happens to the electrons an atom has? It...
To verify that you are using the proxy, go back to the Network Settings in Firefox and enter a different port number and save the settings. Now if you try to browse the web, you should get an error message: ‘The proxy server is refusing connections’. This proves that...
How electron microscopes workIf you've ever used an ordinary microscope, you'll know the basic idea is simple. There's a light at the bottom that shines upward through a thin slice of the specimen. You look through an eyepiece and a powerful lens to see a considerably magnified image of...
1 through 18, are called groups. In the periodic table, elements with similar chemical properties are in the same group. The horizontal rows of the periodic table, from 1 to 7, are called periods. Periods correspond to the number of electron shells possessed by atoms of the elements in tha...
The wave function of each electron can be described as a set of three quantum numbers: Principal number (n) - describes the energy level. Azimuthal number (l) - how fast the electron moves in its orbit (angular momentum); like how fast a CD spins (rpm). This is related to the shape...
through the path to the P side to unite with holes that the electric field sent there, doing work along the way. The electron flow provides the current, and the cell's electric field causes a voltage. With both current and voltage, we have power, which is the product of the two....
To determine the valence electrons in an atom, you write the electron configuration of the element in noble-gas-inner-core form. The electrons outside... Learn more about this topic: Valence Electron | Definition, Configuration & Examples ...
therapeutic uses are considered the main application of nanotechnology in the health sector. Nanotechnology has an important impact on improving therapeutics by facilitating drug delivery, increasing the efficacy of the drug, improving its circulation and stability in addition to decreasing its toxic side...