![]() ![]() The density of a material varies with temperature and pressure. The density of Hassium results from its high atomic weight and from the significant decrease in ionic radii of the elements in the lanthanide series, known as lanthanide and actinide contraction. It has an estimated density of 40.7 x 10 3 kg/m 3. The most stable known isotope, 269Hs, has a half-life of approximately 9.7 seconds. It is a synthetic element (first synthesised at Hasse in Germany) and radioactive. Hassium is a chemical element with symbol Hs and atomic number 108. If we include man made elements, the densest so far is Hassium. The densest material found on earth is the metal osmium, but its density pales by comparison to the densities of exotic astronomical objects such as white dwarf stars and neutron stars. Since nucleons ( protons and neutrons) make up most of the mass of ordinary atoms, the density of normal matter tends to be limited by how closely we can pack these nucleons and depends on the internal atomic structure of a substance. The atomic number density (N atoms/cm 3) of a pure material having atomic or molecular weight (M grams/mol) and the material density (⍴ gram/cm 3) is easily computed from the following equation using Avogadro’s number ( N A = 6.022×10 23 atoms or molecules per mole): The atomic number density (N atoms/cm 3), which is associated with atomic radii, is the number of atoms of a given type per unit volume (V cm 3) of the material. Therefore it is determined by the mass number (number of protons and neutrons). The atomic mass is carried by the atomic nucleus, which occupies only about 10 -12 of the total volume of the atom or less, but it contains all the positive charge and at least 99.95% of the total mass of the atom. Since the density (ρ) of a substance is the total mass (m) of that substance divided by the total volume (V) occupied by that substance, it is obvious, the density of a substance strongly depends on its atomic mass and also on the atomic number density (N atoms/cm 3), Density – Atomic Mass and Atomic Number Density The Standard English unit is pounds mass per cubic foot ( lbm/ft 3). ![]() The standard SI unit is kilograms per cubic meter ( kg/m 3). In words, the density (ρ) of a substance is the total mass (m) of that substance divided by the total volume (V) occupied by that substance. It is an intensive property, which is mathematically defined as mass divided by volume: The electronic configuration of Calcium will be 1s2 2s2 2p6 3s2 3p6 4s2.Typical densities of various substances are at atmospheric pressure.ĭensity is defined as the mass per unit volume. How do you write the electron configuration for Calcium? The electronic configuration of Calcium will be 1s2 2s2 2p6 3s2 3p6 4s2. What is the electronic configuration of Calcium 20? What is the boiling Point of Calcium in Kelvin?īoiling Point of Calcium in Kelvin is 1757 K. Melting Point of Calcium in Kelvin is 1115 K. What is the melting Point of Calcium in Kelvin? What is the boiling Point of Calcium?īoiling Point of Calcium is 1757 K. Calcium has 20 electrons out of which 2 valence electrons are present in the 4s2 outer orbitals of atom. How many valence electrons does a Calcium atom have?Ĭalcium has 2 valence electrons. What is the color of Calcium?Ĭalcium is of Silver color. It is located in group 2 and period 4 in the modern periodic table. Calcium is the 20 element on the periodic table. What is the position of Calcium in the Periodic Table?Ĭalcium is a chemical element with the symbol Ca and atomic number 20. Calcium is a chemical element with symbol Ca and atomic number 20. To form abbreviated notation of electronic configuration, the completely filled subshells are replaced by the noble gas of the preceding period in square brackets. The abbreviated electronic configuration of Calcium is 4s2. What is the abbreviated electronic configuration of Calcium? The electronic configuration of Calcium is 1s2 2s2 2p6 3s2 3p6 4s2. What is the electronic configuration of Calcium? Optical Properties of Calcium Refractive IndexĪcoustic Properties of Calcium Speed of SoundĬalcium Thermal Properties - Enthalpies and thermodynamics Refer to table below for the Electrical properties ofCalcium Electrical ConductivityĬalcium Heat and Conduction Properties Thermal ConductivityĬalcium Magnetic Properties Magnetic Type Hardness of Calcium - Tests to Measure of Hardness of Element Mohs HardnessĬalcium is Conductor of electricity. ![]() Refer to below table for Calcium Physical Properties Densityġ.55 g/cm3(when liquid at m.p density is $1.378 g/cm3) ![]()
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