12/8/2023 0 Comments Atomic mass number of calciumLimestone is also used as a paint on walls.Limestone is also a calcium containing compound that is used in manufacturing cement for construction work.Calcium containing compounds (for example gypsum), is used in manufacturing various construction materials like POP (Plaster Of Paris).Calcium has many isotopes, out of which 40Ca is the most abundant isotope (and its abundance is around 97%).This is because the contact surface area of calcium increases with the water which makes the chemical reaction very fast. The powdered form of calcium reacts with water very rapidly.Calcium reacts with water and liberates hydrogen gas plus heat.Calcium is a chemically reactive metal so it is not found naturally, but it is always found as a compound with other elements.Chemical properties of CalciumĬhemical properties of calcium are mentioned below. Calcium salts can produce orange color, hence it is used in fireworks industries.Melting point of calcium is 842 ☌ and its boiling point is 1484 ☌.Calcium is a soft metal and it can be cut even with a kitchen knife.Calcium is a dull silvery grey colored soft alkaline earth metal.Physical properties of calcium are mentioned below. The physical and chemical properties of calcium element are mentioned below. Human body requires vitamin D to absorb the calcium from food.The requirement of calcium in the human body is fulfilled by eating (or drinking) calcium rich foods like yogurt, cheese, milk, spinach, etc.Calcium is an alkaline earth metal, so more calcium present in the soil results in alkaline soil (or soil having pH higher than 7). Calcium is also present in soil and it controls the pH level of soil.Out of all other metallic elements, the calcium element is the most abundant metallic element found in the human body.Calcium ions are also found dissolved in the sea water.Calcium is also the 5th most abundant element present in the human body.Calcium is the 5th most abundant element (by mass) found in the earth’s crust.Our teeth and bones contain calcium in it.Calcium is a very essential element for all living organisms.Interesting facts about calcium element are mentioned below. So the last electron of calcium enters the s-subshell or s-orbital. ![]() The simple answer: The elements will lie in the s, p, d or f block will completely depend upon the subshell in which the last electron will enter.įor example the electron configuration of calcium is 4s 2. How can you determine the blocks-wise position of elements? Protons 20 Neutrons 20 Electrons 20 Symbol Ca Atomic massĢ, 8, 8, 2 Electronic configuration 4s 2 Atomic radiusĢ31 picometers (van der Waals radius) Valence electronsĢ 1st Ionization energy 6.113 eV ElectronegativityįCC (Face centered cubic) Melting point 1115 K or 842 ☌ or 1548 ☏ Boiling point 1757 K or 1484 ☌ or 2703 ☏ Density 1.55 g/cm 3 Main isotope 40Ca Who discovered Calcium and when?īefore knowing this reason, first of all I want to ask you a simple question. ![]() Let’s dive right into it! Calcium Element (Ca) Information Appearanceĭull silvery grey color State (at STP) Solid Position in Periodic table So if you want to know anything about Calcium element, then this guide is for you. In fact, the table mentioned below is the perfect information box (Which gives you every single detail about the Calcium element in Periodic table.) You are dealing with the calcium-40 isotope, #""_20^40"Ca"#.This is a SUPER easy guide on Calcium element. Therefore, the mass number of this calcium isotope will be The number of neutrons can vary, but the number of protons must always be equal to #20# for a calcium isotope. Now, in order for an atom to be an atom of calcium, it Must contain #20# protons in its nucleus. A quick look in the periodic table will reveal that calcium has an atomic number equal to #20#. This means that in order to get its mass number, all you need to know is how many protons are found in its nucleus.Īs you know, the number of protons an atom contains in its nucleus is given by that atom's atomic number. In your case, you know that an atom of calcium, #"Ca"#, has #20# neutrons in its nucleus. ![]() First thing first, you need to make sure that you have a clear understanding of what mass number actually is.Īs you know, the nucleus of an atom contains protons, which are positively charged particles, and neutrons, which are neutral particles.Īn atom's mass number will always tell you how many protons and neutrons its nucleus contains.
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