how many electrons are there in the m shell?
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The M shell only holds eight electrons. The M shell can actually hold up to 18 electrons as you move to higher atomic numbers.
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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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The transition metals are able to put up to 32 electrons in their second-to-last shell. Something like gold (Au), with an atomic number of 79, has an organization of 2-8-18-32-18-1. Of course, there are still some rules. No shell can have more than 32 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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Different subshells hold a different maximum number of electrons. Any s subshell can hold up to 2 electrons; p supshell up to 6 electrons; d subshell up to 10; and f subshell up to 14.
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So... for the element of ARGON, you already know that the atomic number tells you the number of electrons. That means there are 18 electrons in an argon atom. Looking at the picture, you can see there are two electrons in shell one, eight in shell two, and eight in shell three.
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Cobalt (Co) has an atomic number of 27, which means it has 27 electrons and protons. Shells hold up to two electrons in the first and eight electrons in the outer shells.
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Answer Expert Verified Then, the number outer-shell d electrons is 4.
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The fast way to do it is also to use the relation that the number of orbitals within the n shell of electrons is n^2. So for principle quantum number n=5, there are 25 orbitals, and only 1 electron within each orbital can have a value ms= +1/2, meaning there are 25 electrons with n=5 and ms= +1/2.
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Metal atoms have 1, 2 or 3 electrons in their valence shells whereas non-metal atoms have 4 to 7 electrons in their valence shells.
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Silver atoms have 47 electrons and the shell structure is 2.8. 18.18. 1.
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Most of the elements important in biology need eight electrons in their outermost shell in order to be stable, and this rule of thumb is known as the octet rule. Some atoms can be stable with an octet even though their valence shell is the 3n shell, which can hold up to 18 electrons.
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Each d subshell holds at most 10 electrons. Each f subshell holds at most 14 electrons.
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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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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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When Mg is Mg2+ it loses 2 electrons from the valence shell. That means it has only 10 electrons. Atomic number is 12 meaning there are 12 protons and electrons. The atomic number is always the same for any atom.
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8 elements in the second row, 8 electrons in the second orbit. 8 elements in the third row, 8 electrons in the third orbit. The fourth and fifth orbits would therefore hold 18 electrons.