how to work out how many valence electrons an element has?
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For neutral atoms, the number of valence electrons is equal to the atom's main group number. The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.
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Answer and Explanation: Nitrogen has 5 valence electrons. You can determine the number of valence electrons an element has by looking at the Periodic Table.
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The Group 4 atoms have 4 valence electrons. The Group 5 atoms have 5 valence electrons. The Group 6 atoms have 6 valence electrons. The Group 7 atoms have 7 valence electrons.
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In any event, you must start with Xe and 4 O atoms, and note that there are 8 + 4x6 = 32 total valence electrons. The Xe atom is attached to all four oxygen atoms. Four bonds = 8 electrons, so you have 24 electrons left.
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Selenium Valence Electrons Selenium has 6 electrons in its outermost shell i.e. 2 electrons in s orbit and 4 electrons in the p orbit.
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Atoms of elements in this group have four valence electrons.
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Nitrogen has 5 valence electrons, because its electron configuration is . To determine valence electrons, add the outermost and orbitals.
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The number of valence electrons is equal with the group number. Since oxygen is in group 6 it means that it has 6 valence electrons. Check out the periodic table from the web site above. You will see that the number of protons and electrons are easy to determine.
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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 Lewis structure for XeF4 has a total of 36 valence electrons. When we are done adding valence electrons we check each atom to see if it has an octet (full outer shell).
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This means that neutral zinc atom has a total of 30 electrons surrounding its nucleus. To see how many of these electrons are valence electrons, write the electron configuration of a neutral zinc atom. Notice that the outermost shell, which for zinc is the fourth shell, n=4 , has two electrons.
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1) how many valence electrons are in a structure with the formula. C3H3NOS? I calculated 52 total electrons less the 28 used by first, second, and third shells equals 24 valence electrons, which was incorrect.
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How many valence electrons does magnesium have? There are 2 valence electrons, as indicated by \begin{align*}3s^2\end{align*}. Therefore, the Lewis electron dot formula for magnesium is: Look at the electron configuration for chlorine.
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The number of valence electrons is the number of electrons in the outer shell, that the atom uses for bonding. Nitrogen has 5 electrons in its n=2 (outer) shell.
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It has five valence electrons. Total number of valence electrons in is 5 +1(4) -1=8. Write the skeletal structure of the ions. All the eight electrons are used in four single bonds.
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Boron has 3 valence electrons. The number of valence electrons within an atom of an element simply corresponds to an element's group (column) on the...
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The number of valence electrons in carbon is 4 and the number of valence electrons in hydrogen is 1 and oxygen is 6. has 2 carbon atoms, 6 hydrogen atoms and 1 oxygen atom. Hence, the total number of valence electrons is 20.