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What is a neutral atom that has its first two shells filled has 7 electrons on the third energy level and has no other electrons?
Wiki User
∙ 10y ago
The first electron ring is filled with 2 electrons. The next is filled with 8. So an element with the first two rings filled and 7 electrons in the third would have a total of 17 electrons.
(NOTE: The term shell isn't exactly right, since in nuclear physics, each "shell" only holds 2 electrons, and they are all filled in a certain order based on energy levels. This is more complex than the simple high school chemistry model of rings, though, and your question seems to be asking about the rings due to the "7 on the third energy level" part.)
For it to be neutral, it will have the same number of protons as electrons, 17.
The first 2 are the top row, Hydrogen and Helium.
The next 8 are the second row.
So if we go 7 across (left to right) on the third row, we get to CL.
The element you're asking about is Chlorine.
Wiki User
∙ 10y ago
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How many electron shells would be completely filled by a neutral xenon atom how many would be left over?
5 shells filled, no electrons left over.
How many electron shells would be completely filled by a neutral xenon atom?
Three electron shells would be completely filled by a neutral xenon atom.
How many electron shells would be completely filled by a neutral atom of calcium?
Three. The fourth shell would contain two out of a possible eight electrons.
What elements neutral atom has 2 energy levels with 2 electrons in the outer layer?
If by energy levels you mean shells then Beryllium (Be) is in the second group and the second Period.
How many electrons are there in a first shell of a neutral neon atom?
Neon atom number 10: first shell (K) : 2 electrons second shell (L): 8 electrons all shells being filled up completely
How many electron shells would be completely filled by a neutral xenon atom how many would be left over?
5 shells filled, no electrons left over.
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 electron shells would be completely filled by a neutral xenon atom?
Three electron shells would be completely filled by a neutral xenon atom.
How many electron shells would be completely filled by a neutral atom of calcium?
Three. The fourth shell would contain two out of a possible eight electrons.
What elements neutral atom has 2 energy levels with 2 electrons in the outer layer?
If by energy levels you mean shells then Beryllium (Be) is in the second group and the second Period.
How many electrons are there in a first shell of a neutral neon atom?
Neon atom number 10: first shell (K) : 2 electrons second shell (L): 8 electrons all shells being filled up completely
Why are noble gases are non reactive?
They have filled valence shells. Atoms undergo chemical bonding in order to have filled valence shells by sharing electrons or transferring electrons. Because the noble gases already have filled valence shells, they have no need to react with other elements.
How many elecrtons shells would be filled by a neutral xenon atom?
The first 3 energy levels are filled, the 4s and 4p and 4d sublevels are filled, and the 5s and 5p sublevels are also filled. So only the first three energy levels are completely filled. The fourth and fifth energy levels are partly filled. The electron configuration is 1s22s22p63s23p63d104s24p64d105s25p6 or [Kr]4d105s25p6.
What property does a neutral atom have?
In a neutral atom, the number of electrons in the outer shells equals the number of protons in the nucleus.
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.
What are stable electron configurations most likely to contain?
filled energy sublevels
Are argon and kryptons shells filled with equal number of electrons?
Their outer shells both have 8 electrons yes. However Krypton has 3 d10 and 4p6 which Argon does not
