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Atomic number of sodium is 11. So 11 electrons are there. First K shell could accomodate only 2. Now next L would have place for 8. So totally 10 electrons are firmy placed in the first two shells. Now remaining 1 electron would be in the third orbit M, that too in the s orbital. So sodium has 1 as valency. If suppose 8 electrons were there in the M shell, then s orbital 2, p orbital 6. But d orbital would be filled only after 4s orbital is filled with two electrons. So 8 electrons in s and p would make it less chemically reactive.
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Does Phosphorus have a complete outer shell?
No, it doesn't have a complete octet. Phosphorous is in group 5A, meaning it has 5 valence electrons (5 electrons on its outest shell).
How many electrons does sodium have in its outer most shell?
Sodium is in the third group in the periodic table. It meens that sodium has three shell. First shell - 2 electrons, second shell - 8 electrons, third shell (outer energy level) - 1 electron.
Why sodium and magnesium valency 1?
Sodium and magnesium have a valency of 1 because they have 1 electron in their outermost energy level. By losing this electron, they achieve a full outer shell and become stable with a positive charge of +1.
How many more valence electrons does oxtyen need to have a full outer valence shell?
Oxygen has six valence electrons and requires two additional electrons to achieve a full outer valence shell, which is complete with eight electrons. This is in accordance with the octet rule, which states that atoms tend to gain, lose, or share electrons to attain a stable configuration of eight electrons in their outer shell.
Outer shell electrons is known as?
The outer shell is called the valence shell
How many valence electrons are needed to fill sodiums outer shell?
Sodium has ONE valence electron in its outer shell that is to be donated to any kind of oxidant. By then the outer (3rd) shell (of the Na+ ion) is EMPTY, so the 2nd shell has become the outmost, containing 8 electrons (Ne-configuration). No electrons at all are taken up by sodium.
Why does the transfer of an electron occur between a sodium atom and a chlorine atom?
The transfer of an electron between a sodium atom and a chlorine atom occurs because sodium has one electron in its outer shell that it wants to lose to achieve a more stable electron configuration, while chlorine has seven electrons in its outer shell and can gain one from sodium to complete its outer shell and achieve stability by forming a full octet. This transfer of electrons results in the formation of sodium chloride, an ionic compound.
What change in electron structure occures when a sodium atom becomes a sodium ion?
The valence electrons are either lost to another atom or the sodium atom gains valence electrons, it really depends on if what the sodium atom is bonding with has a lot or a little of valence electrons. The structure doesn't change though, just the number of valence electrons change. The nucleus is never changed when an ion is formed.
How many outer valence electrons does sulphur have?
Sulfur has 6 outer valence electrons.
How many electrons are needed to complete valence shell of fluorine atom?
Fluorine has 7 electrons in its outer shell, and it needs 1 more electron to complete its valence shell, which can hold a total of 8 electrons.
What are valence elecdtrons?
valence electrons are the electrons on the outer-most shell of electrons
Is eight valence electrons is called an?
Eight valence electrons would complete the out shell. If the outer shell was complete it would still be called the same thing, however the charges would be different.
