The element scandium (atomic number 21) has the electron configuration
[Ar] 3d1 4s2
1s22s22p63s23p64s23d1
1s2 2s2 2p6 3s2 3p6 3d1
Electronic configuration of scandium: [Ar]3d1.4s2.
The noble gas electron configuration of radon is [Xe]4f145d106s26p6.
The electron configuration and noble gas core for Li+ is that of He: Li+: (1s2, 2s0)
Calcium loses two electrons to obtain a noble-gas electron configuration.
The element chlorine does not have noble gas configuration. But chloride ion formed (when chlorine accepts an electron) has noble gas configuration of argon.
Electronic configuration of scandium: [Ar]3d1.4s2.
The "Noble gas electron configuration," or the condensed electron configuration, for F is [He] 2s2 3p5.
The noble gas electron configuration of radon is [Xe]4f145d106s26p6.
Losing an electron cesium has a noble gas configuration.
The electron configuration and noble gas core for Li+ is that of He: Li+: (1s2, 2s0)
The noble gas electron configuration of Phosphorus is [Ne] 3s2 3p3
Calcium loses two electrons to obtain a noble-gas electron configuration.
The electron configuration of boron is: [He]2s2.2p1.
[noble gas]ns2 np6
In noble gas notation, you don't have to write the electron configuration up to that noble gas. You simply put the noble gas in brackets [noble gas] and then continue to write the electron configuration from that point. It just makes it shorter and easier to write electron configurations for elements with a lot of electrons.
Only group 18 elements have noble gas configuration. All other elements lack a noble gas electronic configuration.
The element chlorine does not have noble gas configuration. But chloride ion formed (when chlorine accepts an electron) has noble gas configuration of argon.