how many electron shells does fluorine have?
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So... for the element of FLUORINE, you already know that the atomic number tells you the number of electrons. That means there are 9 electrons in a fluorine atom. Looking at the picture, you can see there are two electrons in shell one and seven in shell two.
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There are 4 subshells, s, p, d, and f. Each subshell can hold a different number of electrons. The n number determines how many of the subshells make up the shell. For example, the 1st shell is made up of 1 subshell, s.
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Group 17 elements, including fluorine and chlorine, have seven electrons in their outmost shells, so they tend to fill this shell with an electron from other atoms or molecules, making them negatively charged ions.
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Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on.
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A fluorine atom has nine protons and nine electrons, so it is neutral (see top diagram in the image below). There is one spot open for an electron to be added to the outermost energy level (maximum capicity is 8 electrons).
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1 Answer. A fluorine atom has 4 pairs of electrons + 1 unpaired electron. Fluorine is located in period 2, group 17 of the periodic table, and has an atomic number equal to 9.
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So... for the element of FLUORINE, you already know that the atomic number tells you the number of electrons. That means there are 9 electrons in a fluorine atom.
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The five d orbitals can hold up to 10 electrons. Thus, the third level holds a maximum of 18 electrons: 2 in the s orbital, 6 in the three p orbitals, and 10 in the five d orbitals. The fourth and higher levels also have an f sublevel, containing seven f orbitals, which can hold a maximum of 14 electrons.
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Fluorine is in Group 7. It has seven electrons in its outer shell. It gains an electron from another atom in reactions, forming a fluoride ion, F -. Note that the atom is called fluorine, but the ion is called fluoride.
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The fourth shell has 4 subshells: the s subshell, which has 1 orbital with 2 electrons, the p subshell, which has 3 orbitals with 6 electrons, the d subshell, which has 5 orbitals with 10 electrons, and the f subshell, which has 7 orbitals with 14 electrons, for a total of 16 orbitals and 32 electrons.
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In general, the first shell can hold 2 electrons, the second can hold 8. Consequently, hydrogen only has 1 outer shell as it has less than 2 electrons so it does not need another shell.
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Similarly, neon has a complete outer 2n shell containing eight electrons. These electron configurations make helium and neon very stable.
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How many more electrons can fit in the valence shell of a fluorine atom? 1 more elctron can fit, to make the number of valence electrons to 8.
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Roentgenium atoms have 111 electrons and the shell structure is 2.8. 18.32. 32.18. 1.
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The first energy level has 2 electrons located in the 1s-orbital and the second energy level, which in fluorine's case is the outermost energy level, has 7 electrons, 2 in the 2s-orbital and 5 in the 2p-orbitals. This means that fluorine has a total of 7 valence electrons.
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What Makes Them Similar? When you look at our descriptions of the elements fluorine and chlorine, you will see that they both have seven electrons in their outer shell. That seven-electron trait applies to all of the halogens. They are all just one electron shy of having full shells.
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Chemical Bonding: HF Lewis Structure Hydrogen has 1 valence electron and Fluorine (in Group 7 with F and Cl) has 7 valence electrons. With the Lewis Structure for HF remember that Hydrogen only needs 2 valence electrons to have a full outer shell.