depends on which metal, and which ore. Most are crushed- then some are roasted (heated) some are separated by weight, physical characteristics, etc. In some cases, metals are recovered by chemical reaction, using a chemical that dissolves the metal, which removes it from the waste material.
they are different in many ways eg they are shinier
1.metals, semi-metals, non metals 2.Solid, liquid, gas 3.Conductors Semi-conductors Insulators
Alloying is necessary to improve the properties of metals, such as strength, hardness, corrosion resistance, and ductility. By mixing different metals together, engineers can create alloys with a combination of characteristics that are better suited for specific applications than pure metals. Alloying also allows for cost-effective ways to tailor the properties of materials to meet various requirements.
Yes, there are two main ways to number the groups on the periodic table: the IUPAC (International Union of Pure and Applied Chemistry) numbering system, which numbers groups from 1 to 18, and the older, simpler system which numbers groups from 1 to 8 (with some groups further divided into subgroups A and B).
I personally don't think they are very similar. IIRC, Pure Land emphasizes a literal "Pure Land" that you may go to upon death. Compare to Zen, where the goal is nothing, you are already there..
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There are two ways to think about this. Chemically, the element is a pure substance (each atom has the same number of protons). Nuclear speaking, the element may be represented by a number of different isotopes (different number of neutrons).
Different countries have different ways of marking gold and silver objects. In the UK objects made of these metals are assayed by the government and stamped with an assay mark.
Yes, some metals can exhibit multiple oxidation numbers due to the ability to lose electrons from different orbitals. These variable oxidation states arise from the different ways in which the electrons in the outermost energy levels can be lost.
Different metals are extracted in different ways because each metal has unique properties that determine the most effective extraction method. Factors such as the metal's reactivity, abundance in nature, and the type of ore it is found in all play a role in determining the extraction process. Additionally, environmental considerations, cost, and efficiency also influence the choice of extraction method for each metal.
Different metals have different atomic structures and electron configurations, which influence their reactivity. Metals with fewer valence electrons tend to be more reactive because they are more likely to lose electrons and form positive ions. Additionally, factors such as the presence of impurities, temperature, and the nature of the reactants can also affect the speed and extent of a metal's reaction.
by electrolysis by thermal reduction