The atomic number of magnesium is 12 and its atomic mass is 24.305. What noble gas is magnesium closest to on the periodic table. It’s necessary to apply a process to retrieve a usable amount of Mg. Found a Mistake? New questions in Chemistry . It would be Ne = NEON. The two most important sources are natural minerals like Dolomite and Magnesite. Thus, we can conclude that out of the given options alkaline earth metals are found on the periodic table in group 2. Comment; Complaint; Link; Know the Answer? Chemistry. Not Sure About the Answer? Magnesium is not found in a pure form because it bonds with other elements. The number of each element corresponds to the number of protons in its nucleus (which is the same as the number of electrons orbiting that nucleus). Interesting Facts about Magnesium. For many years magnesium was thought to be the same element as calcium. Magnesium is the 12 th element on the Periodic Table, the lightest among the metals for structural application. Answer. Troyes 1 February, 06:37. Magnesium can easily be molded, shaped, bend and cut and can be turned into various useful products in ways other metals cannot be used. Answers (1) Chosposi 1 February, 08:11. Select text and press Ctrl+Enter. Magnesium gets its name from the district of Magnesia in Greece where the compound magnesium carbonate was first found. Magnesium belongs to the Group 2 (IIA) of periodic tables which makes it one of the alkaline earth elements. The density of magnesium is 1.738 grams per cubic centimeter. A magnesium fire is very difficult to put out as it can … Magnesium is an element in the second group of periodic table with atomic number 12 and it is in the third period of the periodic table. It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (group 2, or alkaline earth metals) of the periodic table: all group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure. The elements in the second group of the periodic table are called alkaline earth metals and they have two electrons in their outermost orbital. Elements of this group are beryllium, magnesium, calcium, strontium, barium and radium. Elements of group 1 are called alkali metals and elements of group 17 are called halogens. 1. The periodic table, also known as the periodic table of elements, arranges the chemical elements such as hydrogen, silicon, iron, and uranium according to their recurring properties. Magnesium is a chemical element with the symbol Mg and atomic number 12. Magnesium is the chemical element of the periodic table of the elements which has as symbol Mg and as atomic number 12.Magnesium is the eighth most abundant element and constitutes about 2% of the earth's crust; it is also the third for abundance among the elements dissolved in sea water. Consequently, the smallest atom is helium with a radius of 32 pm, while one of the largest is caesium at 225 pm. On the periodic table of the elements, atomic radius tends to increase when moving down columns, but decrease when moving across rows (left to right). Isotopes Magnesium has three stable isotopes including magnesium-24, magnesium-25, and magnesium-26. 0.