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Calcium is a metal. Metals give away their electrons off to non-metals. So i would say when calcium is combining with another atom it wants to give away its electrons so it can be an ion.
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∙ 13y ago
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Would you expect calcium to gain or lose electrons in a chemical reactions?
Like all metals calcium will lose electrons.
How many outer ring electrons do calcium and oxygen have?
8 all together
What is the number of protons and neutrons in a calcium nucleus?
The atomic number of calcium is 20 and relative atomic mass (nucleon number) 40.1. The nucleon number is a decimal because it is an average value having taking all the different isotopes into consideration, based on their relative abundance. So all calcium atoms have 20 protons and 20 electrons. The number of neutrons will depend on what isotope of calcium we are talking about; calcium has 24 isotopes. If we consider the isotope calcium-40, which is the most abundant of all at about 97%, the can determine its number of neutrons as 40 - 20 = 20. So a calcium-40 isotope has 20 neutrons.
How many valence electrons are transferred from the calciun atom to iodine in the formation of the compound calcium iodine?
I believe you mean the formation of the compound calcium iodide. In the formation of calcium iodide, CaI2, the calcium atom transfers two valence electrons to two iodine atoms, with one electron going to each iodine atom. This causes the formation of a calcium ion, Ca2+, and two iodide ions, I-. The electrostatic attraction between the oppositely charged ions forms the ionic bonds that form the compound calcium iodide.
Why is a bulb containing magnesium is filled with noble gas instead of air?
It is filled with Argon because air will break down the magnesium. Magnesium has two more electrons than it wants to (all atoms want stability). Noble gases all have the perfect number of valence electrons, so are the most stable elements. The argon in the bulb keeps the magnesium from breaking down because the argon has no need for new electrons. Where oxygen, on the other hand, is not a stable element (it wants two more). Argon will reject any electrons from the magnesium so it will just keep its electrons, therefore not breaking down (as quickly).
What is the charge of valence electrons of calcium?
Yes, calcium has valence electrons - two, in fact (it is a divalent chemical element).
How many valence electron does calcium have?
Calcium has 2 valence electrons, like all Group 2 elements.
Would you expect calcium to gain or lose electrons in a chemical reactions?
Like all metals calcium will lose electrons.
How many outer ring electrons do calcium and oxygen have?
8 all together
How many outer-ring electrons do calcium and oxygen have?
8 all together
How many unpaired electrons are in calcium?
There are no unpaired electrons in calcium, all 20 electrons are in pairs, i.e. each pair is configured in one orbital: 2x in 1s orbital 2x in 2s orbital 2x in each of the three 2p orbitals 2x in 3s orbital 2x in each of the three 3p orbitals and 2x in 4s orbital (these two are the valence electrons)
What is calcium charge on the ion?
The metal calcium is an Alkaline Earth element, which is found in Group 2 of the Periodic Table. All the Group 2 elements have two valence electrons, and these elements want to loan them both out. This will leave a calcium ion with a +2 charge. Because calcium wants to loan out both its valence electrons, it will form compounds based on its desire to do so. Calcium will form bonds in a one-to-one ratio with elements that want to borrow 2 electrons, like oxygen. The compound will be calcium oxide, with CaO as its chemical formula. In the case of elements that want to borrow just one electron, like fluorine, chlorine or any of the halogens, the Group 17 elements, it will form bonds in a one-to-two ratio. Calcium fluoride, CaF2, and calcium chloride, CaCl2, are examples. A link can be found below.
What do all atoms want?
They all want 8 electrons!
Why is the calcium ion Ca2 plus more stable than the calcium atom Ca?
All atoms want to have full valence shells and calcium has 20 electrons: two on the first energy level, 8 on the second, 8 on the third and 2 on the fourth. If it loses two and becomes Ca2+ it will have a full valence shell as it will have eighteen electrons with 8 on the third energy level.
Is calcium sulfide a ionic or covalent bond?
It has a Covalent bond 6 Electrons from the Sulphur atom are shared with the 2 electrons of the Calcium atm. It has a Covalent bond 6 Electrons from the Sulphur atom are shared with the 2 electrons of the Calcium atm.
What is the charge on a calcium ion?
The metal calcium is an Alkaline Earth element, which is found in Group 2 of the periodic table. All the Group 2 elements have two valence electrons, and these elements want to loan them both out. This will leave a calcium ion with a +2 charge. Because calcium wants to loan out both its valence electrons, it will form compounds based on its desire to do so. Calcium will form bonds in a one-to-one ratio with elements that want to borrow 2 electrons, like oxygen. The compound will be calcium oxide, with CaO as its chemical formula. In the case of elements that want to borrow just one electron, like fluorine, chlorine or any of the halogens, the Group 17 elements, it will form bonds in a one-to-two ratio. Calcium fluoride, CaF2, and calcium chloride, CaCl2, are examples. A link can be found below.
WHY does calcium belong in group 2?
The periodic table is organized in order of increasing number of electrons. Column-wise, the elements are divided into groups. With the exception of the transition metals in the middle of the period table, all the other groups have the same number of valence electrons within each groups. Calcium has 2 valence electrons, meaning that there are two electrons in its outermost shell of electrons. All group 2 elements have two valence electrons. So calcium belongs in group 2. It is also there because of how the table is arranged in the order of increasing atomic number
