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Rhenium, with atomic number 75, has two electrons in its fifth energy level.
The correct electron configuration for an element with 5 electrons, which is boron (B), is 1s² 2s² 2p¹. This indicates that the first energy level (1s) contains two electrons, the second energy level (2s) contains two electrons, and one electron is in the 2p subshell. Thus, the total adds up to five electrons.
This element is likely phosphorus (P), which has 15 electrons in total. With 5 electrons in the second energy level, phosphorus has 2 energy levels: the first energy level with 2 electrons and the second energy level with 5 electrons.
The valence electrons are the outer most electrons and the principal energy level in which they belong will vary for element to element and generally corresponds to the period number in which the element is present
Phosphorus has 5 electrons in its outermost principal energy level.
The element in period 3 with 8 electrons in its outermost energy level is chlorine (Cl).
The element sulfur (S) has 16 electrons. It has 2 electrons in its first energy level, 8 electrons in its second energy level, and 6 electrons in its third energy level.
An element with two energy levels can have a maximum of 8 electrons. The first energy level can hold up to 2 electrons, while the second energy level can hold up to 6 electrons.
The valence electrons are the outer most electrons and the principal energy level in which they belong will vary for element to element and generally corresponds to the period number in which the element is present
A neutral atom with an atomic number of 15 (phosphorus) will have 5 electrons in its outermost energy level. This is because the atomic number tells us the number of protons, which is equal to the number of electrons in a neutral atom. The outermost energy level for phosphorus is the third energy level.
7 electrons would be in the highest occupied energy level of a 7A element. Group 7A elements have 7 valence electrons, which occupy the highest energy level of the atom.
The second energy level contains eight valance electrons when it's full.