how many electrons can an outer shell hold?
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In an atom, the electrons spin around the center, also called the nucleus. The electrons like to be in separate shells/orbitals. Shell number one can only hold 2 electrons, shell two can hold 8, and for the first eighteen elements shell three can hold a maximum of eight electrons.
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So we get 2 + 5 = 7. So fluorine has 7 electrons in the outermost shell.
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The atoms of the noble gases have full outer shells of electrons. Helium atoms have two electrons in their outer shell. The atoms of the other noble gases have eight electrons in their outer shells.
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The shell closest to the nucleus, 1n, can hold two electrons, while the next shell, 2n, can hold eight, and the third shell, 3n, can hold up to eighteen.
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So how many electrons are in the outermost shell? You have six electrons here. So oxygen has six valence, valence electrons.
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Each subshell contains a specified number of orbitals, and each orbital can hold two electrons. The types of subshells available to a shell and the number of orbitals in each subshell are mathematically defined by quantum numbers. Quantum numbers are parameters in the wave equation that describes each electron.
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-Nitrogen has five electrons in its outer energy shell.
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All the Group 1 elements - lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs) and francium (Fr) - have one electron in the outer shell. 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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A total of 8 electrons can be placed in the outermost shell of an atom. This rule is known as the Octet rule.
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Atoms tend to be most stable with a full outer shell (one which, after the first, contains 8 electrons), leading to what is commonly called the "octet rule". The properties of an element are determined by its outermost electrons, or those in the highest energy orbital.
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As element 34, it has 34 electrons. 2+8+18 is 28. Therefore, six electrons are on its valence shell. It all depends on shells accepting an amount of electrons.
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Most atoms do not have eight electrons in their valence electron shell. Some atoms have only a few electrons in their outer shell, while some atoms lack only one or two electrons to have an octet.
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The lowest energy level (the K shell) can only be occupied by two electrons, the L shell by 8 and the M shell by 18. The K shell electrons are closest to the nucleus. ... Electrons can't have whatever energy values they want, and each value is associated with a specific orbit trajectory.
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Nitrogen has 5 electrons in its n=2 (outer) shell. There is a quick way of identifying the number of valence electrons - it is the same as the Group number (not for d-block elements, though). Nitrogen is in Group 5, so it has 5 outer shell electrons.
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Row 3 elements on the left lose electrons to gain a full outer shell, elements on the right usually gain electrons to have 8 electrons in their outer shell. The basis of the octet rule is that atoms 'want' a full outer shell of electrons, i.e. they are most stable with a full outer shell.
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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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Two electrons in its outermost (and only) shell, two valence electrons.