In boiling water, the place of hydrogen is taken by Magnesium and a number of metals can be produced using thermal reduction of its salts and oxidized forms with magnesium. Calcium metal appears as a dull grey metal with a pale yellow tint. the electron configuration of this element is [Ar] 4s2. Magnesium is the most chemically active element. Magnesium metal dissolves readily in acids, even weak ones, forming Mg(II) ions and hydrogen, H, Magnesium react with oxygen at room temperature, forming a passivating layer of MgO on the surface. Ammonia will also precipitate Mg(II) as hydroxide, but the precipitation is incomplete. Calcium is a chemical element having the atomic number 20 and chemical symbol Ca. This is the ninth most abundant chemical element on in the universe. Terms of Use and Privacy Policy: Legal. It is in the group 2 and period 4 of the periodic table. Moreover, magnesium (+2) cation is the second most abundant cation in seawater. Side by Side Comparison – Calcium vs Magnesium in Tabular Form Therefore, it has 3 electron shells containing electrons. On the otherhand, the standard atomic weight of Mg is 24.305. 2. The key difference between calcium and magnesium is that the calcium appears as a dull grey metal with a pale yellow tint whereas the magnesium appears as a shiny grey metal. 6. Method 3500-Mg C Inductively Coupled Plasma Method [1]. Available here, 1.”Calcium (20 Ca)”By Hi-Res Images ofChemical Elements (CC BY 3.0) via Commons Wikimedia   This element occurs in a solid phase at standard temperature and pressure. A precipitate can sometimes be observed due to the alkaline properties of hydrogen sulfide, Magnesium does not react with liquid water at room temperature. When ingited, Mg reacts with both oxygen and nitrogen forming a mixture of magnesium oxide, MgO, and magnesium nitride, Mg 3 N 2. For example, it is a common structural metal. Madhu is a graduate in Biological Sciences with BSc (Honours) Degree and currently persuing a Masters Degree in Industrial and Environmental Chemistry. Magnesium and its alloys have very good corrosion resistance and good high temperature mechanical properties. What is Calcium The key difference between calcium and magnesium is that the calcium appears as a dull grey metal with a pale yellow tint whereas the magnesium appears as a shiny grey metal. 5. The standard atomic weight of this element is 40.078. In addition to that, this metal has many uses. It does however react with steam, forming magnesium oxide, MgO, or magnesium hydroxide, Mg(OH). And according to its atomic number, it locates in the group 2 and period 4 of the periodic table. The melting point and boiling points are 842 °C and 1484 °C respectively. Research … A portion of the sample is digested in a combination of acids. Magnesium (Mg), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table, and the lightest structural metal. The pure element is a silver-colored metal, but it tarnishes in air to give it a dull appearance. Magnesium occurs in mineral deposits such as magnesite, dolomite, etc. 1. “Magnesium.” Wikipedia, Wikimedia Foundation, 13 Aug. 2018. 3. Furthermore, the atomic number of calcium is 20 whereas the atomic number of magnesium is 12. With a mind rooted firmly to basic principals of chemistry and passion for ever evolving field of industrial chemistry, she is keenly interested to be a true companion for those who seek knowledge in the subject of chemistry. What is Magnesium Crystals of pure magnesium metal. 1. All rights reserved. It is a shiny grey metal. Moreover, the compounds of calcium are used in the food industry, the pharmaceutical industry, medicine, etc. Under neutral conditions it is precipitated as the hydrogen phosphate, Mg(II) is not precipitated by hydrogen sulfide. It has an atomic mass of 24.305 and atomic number of 12. It also is an alkaline earth metal. Calcium and magnesium both are alkaline earth metal because both of them are in the group 2 of the periodic table of chemical elements. Magnesium can easily be molded, shaped, bend and cut and can be turned … Calcium is a chemical element having the atomic number 20 and chemical symbol Ca. we categorize it as an alkaline earth metal (all the group 2 elements are alkaline earth metals). Figure 01: Calcium Metal with the Dark Oxide-Nitride Layer. It locates in the group 2 and period 3 of the periodic table. Magnesium is a silvery-white, low density, reasonably strong metal that tarnishes in air to form a thin oxide coating. More importantly, calcium is the fifth and magnesium is the ninth most abundant elements in the earth’s crust. It has a hexagonal close-packed crystal structure. The most common and stable oxidation state is +2, but it can form +1 oxidation state as well. Therefore, they have different chemical and physical properties. The key difference between calcium and magnesium is their appearance; calcium is a dull grey metal with a pale yellow tint whereas magnesium is a shiny grey metal. Magnesium is an element that is essential for human nutrition. Similarities Between Calcium and Magnesium This alkaline earth metal has atomic number 12 and element symbol Mg. Magnesium is a silvery-white metal and is moderately hard. It is an s block element, and it occurs as a solid at standard temperature and pressure. Moreover, it is the fifth most abundant element in the earth’s crust. 2.”CSIRO ScienceImage 2893 Crystalised magnesium”By CSIRO, (CC BY 3.0) via Commons Wikimedia. Magnesium belongs to the Group 2 (IIA) of periodic tables which makes it one of the alkaline earth elements. This chemical element occurs as sedimentary rocks such as limestone, mainly in two forms; calcite and aragonite. In addition to that, this chemical element can form various compounds such as calcium oxide (CaO), calcium hydroxide (Ca(OH)2), calcium carbonate (CaCO3), calcium sulfate (CaSO4), etc. The atomic number of magnesium is 12 and its atomic mass is 24.305. Available here  The digest is aspirated into an 8,000 K argon plasma where resulting light emission is quantified for 30 elements simultaneously. Magnesium is unique as it has lightest weight as compared to all other metals. (adsbygoogle = window.adsbygoogle || []).push({}); Copyright © 2010-2018 Difference Between. We find Magnesium in the second position in the periodic table. Apart from that, its electron configuration is [Ar] 4s2. And, the electron configuration is [Ne] 3s2. When it burns in air, magnesium produces a brilliant white light. “Calcium.” Wikipedia, Wikimedia Foundation, 13 Aug. 2018. Magnesium is an essential macronutrient that plays a key role in many body processes, including muscle, nerve, and bone health, and mood. Overview and Key Difference 4. Its compounds are widely used in construction and medicine, and magnesium is one of the elements essential to all cellular life. @media (max-width: 1171px) { .sidead300 { margin-left: -20px; } } Moreover, it has 4 electron shells containing electrons.