Alkaline Earth Metals IS made up of six elements. It’s the second group on the periodic table. All alkaline earth metals have an oxidation number of +2, making them very reactive. Because of their reactivity, the alkaline metals are not found in nature.All of the Alkaline earth metals except magnesium and strontium have at least one naturally occurring radioisotope Noble Gases is made up of six elements on the periodic table which are in the last group on the periodic table. There are actually now seven elements in the noble gases.
The vapor itself is colourless and odorless. Inorganic mercury consists of salt compounds with elements such as chlorine, sulfur, and oxygen. The salt is usually white in appearance and takes the form of powder or crystals. However, mercuric sulfide is red and turns black upon exposure to light. If mercury combines with carbon, it creates organic mercury.
A metallic bond is formed when atoms in metals lose electrons to form cations. Delocalized electrons surround the ions. The metallic bonds provide copper metal its conductivity, hardness, and strength. The element copper undergoes oxidation when exposed to air. Copper has a blue-green oxidized surface.
Red and black phosphorus are considerably more passive in chemical reactions. The oxidation of white phosphorus occurs through a chain reaction. The oxidation of phosphorus is often accompanied by chemiluminesce; an occurrence whereby light is emitted during a chemical reaction and not producing significant quantities of heat. Phosphorus combines directly with all halogens. When heated with metals, phosphorus forms phosphides.
1. Magnesium is an alkaline earth metal with an atomic number of 12 and an atomic mass of 24.305. It is part of the second group of elements on the periodic table located on the far left side of the periodic table. *CAUTION* Magnesium is a flammable metal! The equation for the reaction that is going to happen is: Magnesium + Hydrochloric Acid —> Magnesium chloride + Hydrogen Mg (s) + 2 HCl (aq) --> MgCl 2 (aq) + H 2 (g) This reaction is an Oxidation-reduction.
Titanium is soluble in concentrated acids and it is able to rust. However, Phosphorus is soluble in Phosphorus Disulfide and is not able to rust. Not only do they differ at these properties, but they also have different atomic radii, electronegativity, and electron configuration. On one hand, Titanium’s atomic radius, or the size of its atom is 215 pm. Its electronegativity, or the “... measure of the tendency of an atom to attract a bonding pair of electrons,” (Clark Jim, 2013), is 1.54.
As mentioned in answer to question to 2b, ionic compounds have free mobile ions for conduction of electricity only in the molten state and in aqueous state. Hence, given substance is most likely to be ionic as it exhibits conductance only in these states. In addition to that, it has high melting point, which is characteristic of ionic compounds.  4) A lustrous grey – white solid melts at 1650°C. It is electrically conductive as both a solid and a liquid, but not soluble in either water or any organic solvent.
Calcium is a soft gray alkaline earth metal, it is the fifth-most-abundant element by mass in the Earth 's crust. The element calcium ion is also the fifth-most-abundant dissolved ion in seawater. Free calcium metal is too reactive to occur in nature or it is natural. Calcium is produced in supernova nucleosynthesis. Supernova nucleosynthesis is the theory of the production of many different chemical elements in Supernova explosions.
Benzene, hydrogen and recycled cyclohexane with platinum catalyst contains low sulfur poisoning while nickel catalyst are permanently poisoned by sulfur. ()Cyclohexane from petroleum is a complicated process which yields 85 wt. % purity. It is not a widely used method due to the close range of boiling points between byproducts dimethyl pentanes in natural cyclohexane concentrate. “It’s impractical to produce high purity yield.” () Physical and Chemical Properties Cyclohexane is a highly flammable liquid.