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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 are in the first shell second shell and third shell of neon?
It depends what electronic state it's found in, but in it's ground state (natural form) it has two electrons in the first shell, eight in the second and none in the third. This is because it has an atomic number of 10. 2+8 = 10.
What do atoms in the same period have?
Their outermost electrons are in the same shell. For example, Helium and Hydrogen have 1 and 2 electrons respectively, and these electrons exist within the first electron shell. Lithium has 3 electrons and the third of these electrons is in the second electron shell, and so, it is a member of the 2nd period of the periodic table.
How many shells does helium have?
in the first shell there are 2 electrons there is only one shell because the rule is first shell 2 second shell 8 third shell 8 forth shell whats left unless it is a transition metal then their is always two on the out side unless in is copper or chromium then there is just one and the third shell has the leftovers up to 18 . sorry i got a little cared away
Is the third shell full?
First shell has 2 electrons. Next shell has 8 electrons. The third shell has 18 but scientist say 8 so they don't confuse graphs.
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 are in the first shell second shell and third shell of neon?
It depends what electronic state it's found in, but in it's ground state (natural form) it has two electrons in the first shell, eight in the second and none in the third. This is because it has an atomic number of 10. 2+8 = 10.
How many electrons does sulfur have in its third electron shell?
Sulfur has six electrons in its third electron shell.
What do atoms in the same period have?
Their outermost electrons are in the same shell. For example, Helium and Hydrogen have 1 and 2 electrons respectively, and these electrons exist within the first electron shell. Lithium has 3 electrons and the third of these electrons is in the second electron shell, and so, it is a member of the 2nd period of the periodic table.
What is heliums first orbital shell second and third?
helium has 2 electrons in its 1st orbital. It doesn't have 2nd or 3rd orbitals.
What element has 2 electrons in the first shell 8 second shell and 6 in the third shell?
This element is sulfur (S), with 2 electrons in the first shell, 8 electrons in the second shell, and 6 electrons in the third shell.
How many electrons does it take to fill up the third shell?
The third shell can hold a maximum of 18 electrons.
How many electrons can fit in the third shell of an atom?
The third shell of an atom can hold a maximum of 18 electrons. The first shell can hold up to 2 electrons, the second shell up to 8 electrons, and the third shell up to 18 electrons based on the formula 2n^2, where n is the shell number.
How many shells does helium have?
in the first shell there are 2 electrons there is only one shell because the rule is first shell 2 second shell 8 third shell 8 forth shell whats left unless it is a transition metal then their is always two on the out side unless in is copper or chromium then there is just one and the third shell has the leftovers up to 18 . sorry i got a little cared away
Is the third shell full?
First shell has 2 electrons. Next shell has 8 electrons. The third shell has 18 but scientist say 8 so they don't confuse graphs.
2 Electron in firsat shell 8 electrons in second shell and 6 electrons in third shell?
No, its two electrons in the first, 8 electrons in the 2nd and 3rd shell if its stable
Why is helium an exception to the noble gases?
A Noble Gas does not need to have eight electrons to be classed as such - it simply must have a full outer shell. The first shell can only hold two electrons, which is what helium has, so helium is a Noble Gas. The second and third shells hold eight electrons, which is why other noble gases can be seen as having eight electrons. However no Noble Gases have eight electrons in total - just eight in the outer shell, as the shells fill from the inside out...
