Electron configuration

can be defined in different ways as well. Kinetic energy is energy that results from movement. (Castro) An example would be water flowing through a hydro dam. (What is…) Potential energy is energy that is present due to an objects position or configuration. (Castro) An example of potential energy is a bow that…

be found by using a standard compound of whose concentration is known, in this example: 0.02M of KMnO4. A redox titration involves an oxidation-reduction reaction, hence the name redox. Redox reactions involve the transfer of electrons, i.e. the loss and gain of electrons. KMnO4 is an oxidising agent which means it brings about oxidation and therefore it is being reduced. This means that the Fe (II) is the reducing agent and therefore is being oxidised. Carrying out a redox titration means…

Ref: Saunders N. 2000, Creative Chemistry You have seen that the Group 1 alkali metal elements increase in reactivity as you go down the group. Sodium is less reactive than potassium, which is less reactive than rubidium (which you weren’t allowed to observe directly!) Today, you will use displacement reactions to work out the order of reactivity of the Group 17 halogen elements using chlorine, bromine and iodine. Hypothesis: The higher on the periodic table the more reactive the element…

study masses of molecules or fragments, helping us to measure the mass to charge. In general, the mass spectrometer have a ionizer, vacuum pump, ion accelerator, could have magnets or/and electric field for separate ions , an analyzer tube, and an electron multiplier detector (see figure #). Figure #.- Mass spectrometer. There are different mass spectrometers, for example, transmission quadrupole mass spectrometer, time-of-flight mass spectrometer, quadrupole ion-trap mass spectrometer…

Young’s modulus of about 1 TPa [Ref], shear modulus of 280 GPa [Ref], fracture strength of 130 GPa [Ref], thermal conductivity of 5000 W/mK [Ref], longitudinal sound velocity of 20Km/s [Ref], melting temperature of 4900 K [Ref] and also it has high electron mobility of 250,000 cm2/Vs [Ref] at room temperature. All these exceptional properties can be attributed due its 2D (two dimensional) honeycomb lattice of sp2-hybridized carbon atoms as shown in [Fig 1]. Due to the above said properties it…

electrically without any moving parts so they are virtually maintenance free. Small Size and Weight: The overall thermoelectric cooling system is much smaller and lighter than a comparable mechanical system. A variety of standard and special sizes and configurations are available to meet strict application requirements. Ability to Cool Below Ambient: Unlike a conventional heat sink whose temperature necessarily must rise above ambient, a TE cooler attached to that same heat sink has the ability…

reconstruction can apparently be achieved within the coating surface with limited thickness. Transmission electron microscopy (TEM) results also showed the evidence of supplementary reaction between Co and WC/W2C to form Co3W3C during the SPS processing. Microhardness values obtained on the surface of SPS-treated coating showed 40% enhancement over as-sprayed surface…

but there was. The two main factors that could have affected the results would be galvanization and oxidation. According to study.com, oxidation is “At its most basic level, oxidation is the loss of electrons. It happens when an atom or compound loses one or more electrons. Some elements lose electrons more easily than others. These elements are said to be easily oxidized. Generally speaking, metals including sodium, magnesium, and iron are easily oxidized”. Also, according to wiseGEEK.com,…

periodic table as a P. Its atomic number is 15 and the atomic mass is 30.974 (which is a rounded number). Group number the element is apart of on the periodic table is 15. Phosphorus’ listed isotopes are P-31 (stable) and 23 others and its electron configuration is [Ne]3s2 3p2. Physical properties of the element are varied depending on which allotrope of the element you are talking about. White Phosphorus has a melting point of 44.2 degrees C and a boiling point of 280.0 degrees C, its density…

odorless, largely inert gas with a hexagonal structure that is essential to life on earth. This nonmetal is number seven on the periodic table; in its neutral state, it has seven protons, seven neutrons, seven electrons, and an average atomic mass of 14.0067 amu. The electron configuration of this element in ground state is 2-5. Its discovery, safety, availability, and uses are important in understanding this element and its significance. Nitrogenous compounds are present in all living things…