Tuesday, November 5, 2019

The Difference Between a Cation and an Anion

The Difference Between a Cation and an Anion Cations and anions are both ions. The difference between a cation and an anion is the net electrical charge of the ion. Ions are atoms or molecules which have gained or lost one or more valence electrons, giving the ion a net positive or negative charge. If the chemical species has more protons than electrons, it carries a net positive charge. If there are more electrons than protons, the species has a negative charge. The number of neutrons determines the isotope of an element  but does not affect the electrical charge. Cation Versus Anion Cations are ions with a net positive charge. Cation Examples: Silver: AgHydronium: H3OAmmonium: NH4 Anions are ions with a net negative charge. Anion Examples: Hydroxide anion: OH-Oxide anion: O2-Sulfate anion: SO42- Because they have opposite electrical charges, cations and anions are attracted to each other. Cations repel other cations and anions repel other anions. Predicting Cations and Anions Sometimes, you can predict whether an atom will form a cation or an anion based on its position on the periodic table. Alkali metals and alkaline earth metals always  form cations. Halogens always form anions. Most other nonmetals typically form anions (e.g. oxygen, nitrogen, sulfur), while most metals form cations (e.g. iron, gold, mercury). Writing Chemical Formulas When writing the formula of a compound, the cation is listed before the anion. For example, in NaCl, the sodium atom acts as the cation, while the chlorine atom acts as the anion. When writing cation or anion symbols, the element symbol(s) is listed first. The charge is written as a superscript following the chemical formula.

Saturday, November 2, 2019

Research Essay is an essay based on the cyber forensic

Research is an based on the cyber forensic - Essay Example nked with the enhancement of these composite devices (in the existence of exclusive and proprietary resolution), repeatedly have a say in their nonexistence. Like protection expertise, cyber precaution actions and competences also require to be polished to contain the exclusiveness and fine distinction related to management systems (Rowlingson, 2004). As a basic constituent to incident response potential, Casey (2004) argues that cyber forensics allow for the compilation, assesment, scrutiny, and reporting of event information. Cyber forensics is the use of scientifically verified techniques to collect, develop, deduce, and to apply digital proof to give a convincing depiction of cyber crime tricks (Saks & Koehler, 2005). Cyber forensics also comprise of the act of making digital information appropriate for addition into a scandalous investigation (Rowlingson, 2004). Nowadays cyber forensics is a phrase used in combination with regulation enforcement, and is taught as lessons in numerous colleges and universities in the world (Saks & Koehler, 2005). Computer forensics, for some time, has been majorly wellknown, and has grown into an information expertise facility that is quite familiar amongst present day information protection plans (Boddington et al, 2008). The aim of cyber forensics is to prop up the fundamentals of troubleshooting, scrutinizing, recuperation, as well as safeguarding sensitive information. Furthermore, in the incidence of a scandal being performed, computer forensics is also a way to accumulating, scrutinizing, and storing data as proof in a lawsuit (Casey, 2004). While scalable to several information expertise fields, particularly contemporary commercial architectures, cyber forensics are taxing when being practical to cotemporary environments, which do not encompass modern information technologies, or are planned with technologies, which do not present ample data archives or appraisal capacities (Rowlingson, 2004). Moreover, Cohen (2006)