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Your K and L shells are filled with electrons but there are only two electrons in your M shell?
Wiki User
∙ 13y ago
I'm not sure, but I'm guessing Magnesium (Mg). On Wikipedia it says that "The electron shells are labelled K, L, M, N, O, P, and Q; or 1, 2, 3, 4, 5, 6, and 7". The first electron shell can hold 2 electrons, the second layer can hold 8, and the third layer can hold 8 as well. If we look at the question, it is practically saying, 'Your 1st and 2nd electron shells are filled (meaning there are 10 electrons so far) and there are 2 in the 3rd shell (meaning there are now 12 electrons all together). Now, if you look for the element on the Periodic Table which has an atomic number (number of protons = number of electrons) of 12, you would find Magnesium. Which should be your answer. :)
Wiki User
∙ 13y ago
It seems you have 18 electrons in total, given that the K and L shells are filled. The M shell can hold up to 18 electrons, so having only 2 electrons in the M shell means you have 16 electrons in the M shell. This configuration is likely of a noble gas element, such as Argon (atomic number 18).
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How many electron shells woul be completely filled by a neutral xenon atom?
Your question reveals a common confusion between orbitals and shells. Chlorine has three electron shells: the first, second and third. The first shell has just the one orbital, the 1s The second shell has two sub-shells, the 2s and the 2p. There are three p orbitals in the 2p sub-shell. Each orbital can hold two electrons, so there are eight electrons maximum in the second shell. The third shell likewise has two sub-shells, the 3s and the 3p, but the 3p is not completely filled, leaving room for one more electron. When chlorine gains this electron it will become a Cl- ion. This is summed up in the electron configuration 1s22s22p63s23p5.
How many electrons does francium have in its outer most shell?
francium only has one valence electron (one electron in the outermost shell).
Why do outer shells of atoms hold more electrons?
Because the shell can only hold eight electrons. check
Do only outer shells gain or lose electrons with other atoms?
In chemical bonding, only the outermost electrons (valence electrons) of atoms participate in gaining or losing electrons to form bonds with other atoms. Inner shells typically do not gain or lose electrons in chemical reactions.
How many electrons will make a shell stable?
A shell will be stable when it is filled with the maximum number of electrons it can hold based on its energy level. For the first shell, 2 electrons make it stable (since it can hold a maximum of 2 electrons). For subsequent shells, the stability generally occurs when the shell is filled to its maximum capacity (2, 8, 18, 32, etc. electrons for each successive shell).
How many filled electron shells does helium have?
Helium has only 1 shell with two electrons.
How many electrons are in its outermost shell?
It depends on the element in question. The outer most shell of electrons will hold the remainder of the electrons after all inward shells are filled. The first shell will only hold up to 2 electrons. After each shell holds up to 8 electrons (if the atomic number is <20).
How can i convert real number to round that number?
An electron shell may be thought of as an orbit followed by electrons around an atom's nucleus. The closest shell to the nucleus is called the "1 shell" (also called "K shell"), followed by the "2 shell" (or "L shell"), then the "3 shell" (or "M shell"), and so on further and further from the nucleus. The shell letters K, L, M, ... are alphabetical.Each shell can contain only a fixed number of electrons: The 1 shell can hold up to two electrons, the 2 shell can hold up to eight electrons, and in general, the n shell can hold up to 2n2 electrons. Since electrons are electrically attracted to the nucleus, an atom's electrons will generally occupy outer shells only if the more inner shells have already been completely filled by other electrons. However, this is not a strict requirement: Atoms may have two or even three outer shells that are only partly filled with electrons. (See Madelung rule for more details.) For an explanation of why electrons exist in these shells see electron configuration.[1]
How many electrons in the shells of helium?
The first and only filled shell has two electons. The nucleaus has two protons. He-4 also has two neutrons.
How many unpaired electrons are present in a neutral mercury atom?
There are no unpaired electrons in an unexcited neutral mercury atom; its outer shell contains only two s electrons that are paired, as are all the electrons in the filled inner shells of the atom.
How many shells does a helium have?
Helium has only 1 shell with two electrons.
How many electron shells woul be completely filled by a neutral xenon atom?
Your question reveals a common confusion between orbitals and shells. Chlorine has three electron shells: the first, second and third. The first shell has just the one orbital, the 1s The second shell has two sub-shells, the 2s and the 2p. There are three p orbitals in the 2p sub-shell. Each orbital can hold two electrons, so there are eight electrons maximum in the second shell. The third shell likewise has two sub-shells, the 3s and the 3p, but the 3p is not completely filled, leaving room for one more electron. When chlorine gains this electron it will become a Cl- ion. This is summed up in the electron configuration 1s22s22p63s23p5.
How many electrons does francium have in its outer most shell?
francium only has one valence electron (one electron in the outermost shell).
Why do outer shells of atoms hold more electrons?
Because the shell can only hold eight electrons. check
Do Electrons from inner shells link up to form compounds?
No, only outer shell electrons participate in chemical bonds.
Two electrons in helium are placed in only one shell while three electrons in lithium occupy two shells?
It is because the two electrons in helium are placed in K-shell. The K-shell has the capacity of only two electrons. Therefore, in Lithium the third electron is placed in the L-shell. You can find the capacity of a shell to hold electrons by the formula 2n2 where n is the shell no.
How many electrons shells does a helium atom have?
The electron configuration of helium is 1s2; two electrons on the first (and the single) electron shell.
