The element with the electron configuration 1s2 2s1 is lithium.
The element with the electron configuration 1s2 2s2 2p6 is neon (Ne).
This element is chlorine (group 17).
The element that corresponds to the electron configuration 1s2 2s2 is Beryllium (symbol Be), which has an atomic number of 4. It has 4 electrons, with 2 in the 1s orbital and 2 in the 2s orbital.
5 electrons: 1s2 2s2 2p1, so an uncharged atom would have 5 protons: Boron.
The element with the electron configuration 1s2 2s1 is lithium.
The element with the electron configuration 1s2 2s2 2p6 is neon (Ne).
This element is chlorine (group 17).
Helium.
The element that corresponds to the electron configuration 1s2 2s2 is Beryllium (symbol Be), which has an atomic number of 4. It has 4 electrons, with 2 in the 1s orbital and 2 in the 2s orbital.
The element with the electron configuration 1s2 2s2 2p6 3s2 3p6 is Argon, which has an atomic number of 18.
5 electrons: 1s2 2s2 2p1, so an uncharged atom would have 5 protons: Boron.
The electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d7 represents the element manganese (Mn), which has an atomic number of 25.
The element with atomic number 15 is phosphorus. Its electron configuration is 1s2 2s2 2p6 3s2 3p3.
Magnesium, Mg
Magnesium
Magnesium