how many electrons are found in the outermost orbit of calcium?
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Electrons In The Shells Yes, calcium is defined as a metal because of both its physical and chemical traits. They all have an outer shell with two electrons and are very reactive. Those elements in the second column have two electrons ready to make compounds. It shouldn't surprise you that calcium has a valence of 2.
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So fluorine has 7 electrons in the outermost shell.
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All of that information tells you there are two electrons in the first orbital and five in the second (2-5). Phosphorus (P) is also in Group VA which means it also has five electrons in its outer orbital.
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Well Ca has atomic number 20 i.e. There are 20 electrons in Ca. The electronic configuration for Ca is 1S^2, 2s^2, 2P^6,3s^2, 3p6, 4s^2. The azimuthal Q. NO for second orbital is l=1.
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Aluminum is in the fifth column and therefore has 5 electrons in its outermost shell. It would tend to lose three electrons and form a +3 ion. Magnesium is in the second column and therefore has 2 electrons in its outermost shell.
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Electrons In The Shells They all have an outer shell with two electrons and are very reactive. Those elements in the second column have two electrons ready to make compounds. It shouldn't surprise you that calcium has a valence of 2. You won't find calcium sitting around as a pure element.
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Selenium is a member of the sulfur family with elements including tellurium and polonium. This family has six electrons in the outermost shell. Selenium specifically has an electron configuration of 2-8-18-6. The six electrons in the outermost shell allow selenium to have a variety of valence numbers.
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The electrons in the highest numbered subshells are the valence electrons, which comprise the valence shell of the atom. For brevity, many chemists record the electron configuration of an atom by giving only its outermost subshell, like 4 s 1 for potassium or 4 s 2 for calcium.
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1 Answer. Calcium has 2 valence electrons. You can see that there are 2 electrons in the outer energy level and these are the valence electrons.
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The number of valence electrons are equal to the number of electrons in the outermost shell of the atom. The atomic number of sulphur is 16, and therefore the sulphur atom has 16 electrons in its orbits. The first shell can have a maximum of 2 electrons, and the second shell a maximum of 8 electrons.
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So we get 2 + 5 = 7. So fluorine has 7 electrons in the outermost shell.
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Yes, calcium is defined as a metal because of both its physical and chemical traits. They all have an outer shell with two electrons and are very reactive. Those elements in the second column have two electrons ready to make compounds. It shouldn't surprise you that calcium has a valence of 2.
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Valence electrons are the electrons orbiting the nucleus in the outermost atomic shell of an atom. Electrons that are closer to the nucleus are in filled orbitals and are called core electrons.
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Oxygen has 6 electrons in outermost orbit. where 2s22p4 is outermost electronic configuration. S orbital (2s2)→2 electrons. P orbital (2p4)→4 electrons.
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The Group 7 elements - fluorine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At) - have seven electrons in the outer shell.
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If an ion has a 2+ charge then it must have lost electrons to form the cation. If the ion has 18 electrons and the atom lost 2 to form the ion, then the neutral atom contained 20 electrons. Since it was neutral, it must also have had 20 protons. Therefore the element is calcium.
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Calcium, Ca Calcium is also in Group 2. It has two electrons in its outer shell. When these electrons are lost, a calcium ion, Ca 2+, is formed. A calcium ion has the same electronic structure as an argon atom (Ar).