Since the number of electrons and their arrangement are responsible for the chemical behavior of atoms, the atomic number identifies the various chemical elements. Each electron is influenced by the electric fields produced by the positive nuclear charge and the other (Z – 1) negative electrons in the atom. Therefore, the number of electrons in neutral atom of Calcium is 20. The number of electrons in an electrically-neutral atom is the same as the number of protons in the nucleus. Although extremely neutron-rich for such a light element, 48Ca is very stable because it is a doubly magic nucleus, having 20 protons and 28 neutrons arranged in closed shells. 46Ca and 48Ca are the first “classically stable” nuclides with a six-neutron or eight-neutron excess respectively. It is produced in the silicon-burning process from fusion of alpha particles and is the heaviest stable nuclide with equal proton and neutron numbersĬalcium-42 is composed of 20 protons, 22 neutrons, and 20 electrons.Ĭalcium-43 is composed of 20 protons, 23 neutrons, and 20 electrons.Ĭalcium-44 is composed of 20 protons, 24 neutrons, and 20 electrons.Ĭalcium-46 is composed of 20 protons, 26 neutrons, and 20 electrons.
By far the most common isotope of calcium in nature is 40Ca, which makes up 96.941% of all natural calcium. Calcium is the first (lightest) element to have six naturally occurring isotopes.Ĭalcium-40 is composed of 20 protons, 20 neutrons, and 20 electrons. Natural calcium is a mixture of five stable isotopes (40Ca, 42Ca, 43Ca, 44Ca, and 46Ca) and one isotope with a half-life so long that it can be considered stable for all practical purposes (48Ca, with a half-life of about 4.3 × 1019 years). Mass numbers of typical isotopes of Calcium are 40 42 43 44 46. Isotopes are nuclides that have the same atomic number and are therefore the same element, but differ in the number of neutrons. The difference between the neutron number and the atomic number is known as the neutron excess: D = N – Z = A – 2Z.įor stable elements, there is usually a variety of stable isotopes.
#Charge of calcium 40 plus
Neutron number plus atomic number equals atomic mass number: N+Z=A. The total number of neutrons in the nucleus of an atom is called the neutron number of the atom and is given the symbol N. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z. Pure calcium metal is now made commercially by heating lime with aluminum.Ĭalcium is a chemical element with atomic number 20 which means there are 20 protons in its nucleus. The largest use of metallic calcium is in steelmaking, due to its strong chemical affinity for oxygen and sulfur. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. However, your healthcare provider may have more information concerning specific programs available in your area.Calcium – Protons – Neutrons – Electrons – Electron ConfigurationĬalcium is an alkaline earth metal, it is a reactive pale yellow metal that forms a dark oxide-nitride layer when exposed to air. No Patient Assistance Programs were found for this medication. Patient assistance programs (PAPs) are typically sponsored by pharmaceutical companies and offer cost-free or discounted medicines,Īs well as copay programs, to individuals with low income or those who are uninsured/under-insured and meet specific criteria.Įligibility requirements for each program may vary. Patient Assistance & Copay Programs for Atorvastatin
No manufacturer promotions could be found for this medication. Target, WalMart Pharmacy, Duane Reade and 65,000 pharmacies nationwide. Valid at all major chains including Walgreens, CVS Pharmacy, Note: This is a drug discount program, not an insurance plan. Over-the-counter drugs and pet prescriptions.
#Charge of calcium 40 free
The free Discount Card works like a coupon and can save you up to 80% or more off the cost of prescription medicines,
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