how many valence electrons does selenium have?
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The six electrons in the outermost shell allow selenium to have a variety of valence numbers. Selenium compounds have been found that have valences of -2, 4, and 6.
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Answer and Explanation: A neutral atom of silicon will have four valence electrons. Finding the number of valence electrons is an easy task when using the periodic table of...
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Sulfur has 6 valence electrons located in its outermost orbit. When looking at the sulfur atom, it contains 16 total electrons. The first two orbits...
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Q.An atom has 7 valence electrons – 2 are in an s-subshell and 5 in a p-subshell.
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There are a total of 48 valence electrons in the Lewis structure for SF6. Note that Sulfur (S) is in Period 3 on the periodic table and can have an expanded octet and is able to have more than 8 valence electrons.
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∴ Sulfur has 6 valence electrons. All the members of the same family (column) on the periodic table will have the same number of valence electrons.
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1 Answer. Oxygen has 6 valence electrons. A way to remember this is to note that it is in column 16 of the periodic table. For the representative elements (columns 1, 2, 13-18), the digit in the units place of the column number is the same as the number of valence electrons.
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Christopher P. Arsenic has 5 valence electrons. It's electron configuration is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p3 .
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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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there are 15 electrons in total, there must be 5 electrons at the third energy level. there are 3 energy levels, so the electrons at the third are outer, or valence, electrons. this means that there are 5 valence electrons. all neutral atoms of the elements in group 5 have 5 valence electrons.
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The electrons outside the noble gas core are? Right! The 4s23d6 electrons. Iron thus has 8 valence electrons!
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Valence electrons. Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell.
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1 Answer. The sulfur atom has 6 valence electrons, and thus the S2− has 8 valence electrons.
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Silicon has 4 valence electrons. The number of valence electrons of silicon can be predicted using its position in the modern periodic table.
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Answer and Explanation: Silicon has 4 valence electrons. The number of valence electrons of silicon can be predicted using its position in the modern periodic table.
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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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Group 4A elements have 2 valence electrons in an s orbital and 2 valence electrons in p orbitals. Group 5A elements have 2 valence electrons in an s orbital and 3 valence electrons in p orbitals. Group 6A elements have 2 valence electrons in an s orbital and 4 valence electrons in p orbitals.