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Type your answer here... The number of valence electrons in calcium is 20, because it's almost the same thing as it's atomic number.
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What is the valence number for calcium phosphate?
Calcium has valence of 2, forming the calcium ion Ca2+. The phosphate ion, PO43- contains five valent phosphorus and divalent oxygen along with three extra electrons. Compounds do not have a valence, atoms have a valence.
How many valence electrons are in the polyatomic ion HPO4 -2?
Hydrogen has 1 valence electron, phosphorus has 5 valence electrons, and oxygen has 6 valence electrons. So, if you totaled all of the valence electrons in the ion HPO42- you'd get 1 + 5 + 6 X 4 + 2 = 32. However, you should realize that the term "valence electron" really only applies to individual atoms, not compounds. The only electrons one would concern themselves with in the HPO42- ion are the 2 that make it an ion.
For calcium ca write the numbers of electrons it must gain or lose to have 8 vlance electrons then calculate the charge of the ion that would form?
Calcium (Ca) has 20 electrons. To have 8 valence electrons, it needs to lose 2 electrons. When it loses 2 electrons, it forms a Ca2+ ion with a +2 charge.
When a calcium atom loses its valence electrons the ion formed has an electron configuration that is the same as an atom of?
Argon. Calcium has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2, and when it loses its valence electrons (the outermost 4s2 electrons) it has a configuration identical to argon. If you don't know about sublevels, then disregard that. Calcium has a configuration of 2-8-8-2, and when it loses its 2 valence electrons, it has a configuration identical to argon in the ground state. Hope that cleared it up
How many valence electrons are in calcium plus chlorine?
the valence of CaCl2 is 2 because its not necessary that CaCl2 is always attached in hydrated form...... the basic thing which u study in your school classes that the outermost shell of both the element must be completed. so cacl2 has the valency of 2 because ca is electropositive. think it
Number of valence electrons calcium lose?
Calcium has 2 valence electrons in its outer shell. To achieve a full outer shell, it will lose these 2 electrons, becoming a Ca^2+ ion.
How many neutrons are in calcium oxide?
Depends on what you mean by number of electrons. Calcium has 20 electrons and oxygen has 8 electrons for a total of 28 electrons. But if you mean how many VALENCE electrons, then the calcium has 2 and the O has 6 for a total of 8 valence electrons.
How many valence electrons are in chloride?
Chlorine has 7 valence electrons. A chloride ion has 8.
Can calcium become stable by losing 1 electron?
Calcium loses its two valence electrons to become Ca 2+ ion.
What is the valence number for calcium phosphate?
Calcium has valence of 2, forming the calcium ion Ca2+. The phosphate ion, PO43- contains five valent phosphorus and divalent oxygen along with three extra electrons. Compounds do not have a valence, atoms have a valence.
Is calcium with a plus 1 charge a ion?
Yes, calcium with a +1 charge is an ion. This ion is formed when calcium loses its 2 valence electrons, resulting in a +1 charge.
The ion ICl4- has how many valence electrons?
The ICl4- ion has 36 valence electrons. Iodine contributes 7 valence electrons and each chlorine atom contributes 7 valence electrons, totaling 36 valence electrons in the ICl4- ion.
How many valence electrons in arsenide ion?
Arsenide ion has 3 valence electrons. Arsenic, the element from which arsenide ion is derived, is in group 15 of the periodic table, so it has 5 valence electrons. When it forms an ion with a charge of -3, it gains 3 electrons to achieve a full octet.
How many valence electrons does magne sium have?
A magnesium atom has 2 electrons in its valence shell. A magnesium ion has 8 electrons in its valence shell.
How many numbers of electrons grained or lost for calcium?
Calcium typically loses 2 electrons to achieve a stable electron configuration, forming a Ca2+ ion. This results in a full outer energy level (valence shell), similar to the noble gas configuration of argon.
How many valence electrons are in a sulfur atom and a sulfide ion?
A sulfur atom has 6 valence electrons, while a sulfide ion has 8 valence electrons because it gains two electrons to achieve a stable electron configuration.
How many valence electrons are in a chlorine atom and a chloride ion?
A chlorine atom has 7 valence electrons, as it is in group 17 of the periodic table. A chloride ion has 8 valence electrons, as it gains an additional electron to achieve a full octet and a stable electron configuration.
