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The 3rd shell can contain 18 electrons. The elements that have a 3rd shell as the outer shell are the the elements in period 3, where the 3s and 3p orbitals are filled to a maximum of 8 electrons.
The 3d orbitals are filled in the 4th period in the transition elements.
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Does Argon have a bigger atomic radius then Neon?
I would say no. The potassium atom has 1 valence electron which is in the 4th valence shell. To form the potassium ion, it gives away this electron - thus becoming K+. Now, it has no electrons in the 4th valence shell - they are all in the 3rd valence shell. Argon also has all of its electrons in the 3rd valence shell. Also, K+ now has the same number of electrons as Argon. The reason why, at least I would say, argon has a larger radius than K+ is that even though they are in the same valence shell and have the same number of electrons, argon has one less proton than K+. This means that argon's nucleus does not pull in its electrons with quite as much force as K+. Therefore, the electrons (on average) are not as close to the nucleus as with K+. At least, this is how I would reason this out.
What is the most common element of human body?
By molar amount, hydrogen and oxygen are the most common elements; carbon is the third. By mass, oxygen is the most common, and carbon is the second (with hydrogen being third by mass). By mass, oxygen is the most abundant, and phosphorus is the least, carbon the 2nd, hydrogen, 3rd. By atoms, hydrogen is most abundant, and phosphorus the least, oxygen 2nd, carbon 3rd.
When would an atom be chemically stable not react?
According to Madelung rule the no. of electrons filled in a shell or orbit depends on the energy of shell or orbit . lower is the energy of shell higher will be its priority for electron filling. 1st orbit can have 2 electrons 2nd orbit can have 8 electrons 3rd orbit can have 18 electrons 4th one can have 32 electrons and so on. These are the most stable configurations of atoms. it seems that only electrons are responsible for atom's stability, because they are present outside nucleus of atom and take part in the chemical reaction. As it is natural fact that every object in this world try to attain stability, the same principle applies on the stability of atom. if an atom have 5 electrons it will either try to gain 3 more electrons or try to lose 3 electrons as it will try to attain the most stable configuration as it is given above. Only after attaining the stable configuration, the atom will be inert i.e.it will not react.
What is the 3rd trophic level?
Humans.
3 How many instar stages are there in the lifecycle of a fly?
5 The fly molts twice so there are 3 instar stages 1st, 2nd and 3rd instar larvae. each larger than the later.
How many electrtrons can the second electron shell hold?
Use the figure 2n2 where n = the shell number. Following this, we can find out that there are a maximum of eight electrons in the second shell.The 2nd Shell holds 8, as well as the 3rd.4th holds 18I support your answer that 2nd shell contain 8electrons.But it is not so correct about the 3rd shell.I know upto 9th class it is taught that 3rd shell contain only 8 electron.After that theory is changed as more elements with higher atomic number are intoduced.It is also proved by 2n2 property.2*32=184th shell contain 32electrons.
How many electrons can 3rd shell hold?
In (3s2 3p6 3d10) = 2 + 6 + 10 = 18 electrons in the 3rd shell (3(s+p+d))
How many of atoms are in the 3rd shell of an atom with 4 shells?
If you are asking about the number of electrons then it would be 8. The first shell can hold a maximum number of 2 electrons. The second and third shell would have a maximum of 8 electrons each.
What is the configuration for chlorine?
Chlorine is the 17th element in the periodic table. The 1st shell can only hold 2 electrons The 2nd shell can only hold 8 electrons The 3rd shell can only hold 8 electrons Therefore, the electronic configuration would be: 2, 8, 7 1st 2nd 3rd Altogether, it makes up 17.
What is row on the periodic table called what do they have in common?
The row is called the period. Each element in the same period has the outermost electrons in the same shell (energy level). For example, the elements in the 3rd period all have the outermost electrons in the 3rd shell.
How many electrons can you fit on each energy level?
On the first shell you can only fit 2. 2nd shell is 8. 3rd shell is 18.
How many elements are there in 3rd transion elements?
There are eight third period transition elements on the periodic table.
What represents the electronic structure of an element?
Electronic structure is how many electrons each shell of an atom can hold. It is written by the number of electrons in the 1st shell (max 2) then a commer, the number of electrons in the 2nd shell (max 8) another commer, how many are in the 3rd shell (max 8) etc. example: 2,8,8
How many electrons can the 3rd level hold?
16
How many electrons can be on level 3?
I believe its 18 electrons on the 3rd orbital shell
Which elements has 3 electrons in its outermost shell?
Elements having electrons in their third valence shell can be found in the third row of the periodic table (elements 11-18).
How many electrons are in the first electron shell?
Up to 2 in the first shell Then 8 in the 2nd And 8 in the 3rd
