Argon (Ar)
The element that completes the 7s sublevel is radium, with the electron configuration 7s2.
To find the element with a 3p4 valence configuration, look in period 3 and group XVI, and that is ...S, sulfur.
the total electron distribution in such an atom is 1s--2 2s--2 2p--6 3s--2 3p--5 so, total number of electrons comes out to be 17. so, the element is chlorine. symbol is Cl.
The 5p sublevel is completed with 6 electrons with the addition of the element radon (Rn).
The 2s sublevel can hold a maximum of 2 electrons.
The element that completes the 7s sublevel is radium, with the electron configuration 7s2.
The 2p sublevel is completed with six electrons and is found in elements from carbon (C) onwards. The seventh element, nitrogen (N), is the element that completes the 2p sublevel.
To find the element with a 3p4 valence configuration, look in period 3 and group XVI, and that is ...S, sulfur.
The 5p sublevel is completed with 6 electrons with the addition of the element radon (Rn).
the total electron distribution in such an atom is 1s--2 2s--2 2p--6 3s--2 3p--5 so, total number of electrons comes out to be 17. so, the element is chlorine. symbol is Cl.
Al, Si, P, S, Cl and Ar have 1, 2, 3, 4, 5 and 6 electrons respectively in the 3p (valence orbitals). However all elements after Argon have completely filled 3p orbitals though 3p is not the valence orbital.
This alkali metal is Rubidium Rb, having atomic no 37
The 2s sublevel can hold a maximum of 2 electrons.
There are one 3s orbital, three 3p orbitals, and five 3d sublevels.
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Argon is the last element in its period (period 3) because it fills the 3p sublevel, which can hold a maximum of six electrons. After argon, the next element, potassium, begins filling the 4s sublevel in the next period (period 4).
Calcium is the element that has 2 electrons in the 4s sublevel.