argon is because it's the last noble gas used to get to Br.. it's like a short cut, instead of writing 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^5 you can skip a lot of it by taking th last noble gas used which is the 3p^6(Ar) and continue from there like so: [Ar] 4s^2 3d^10 4p^5
The electron configuration and noble gas core for Ca2+ is 1s22s22p63s23p6
Definition: A noble gas core is an abbreviation in an atom's electron configuration where the previous noble gas's electron configuration is replaced with the noble gas's element symbol in brackets. ... This is the noble gas core notation of sodium.
The electron configuration and noble gas core for Li+ is that of He: Li+: (1s2, 2s0)
The noble gas core is a representation of the electron configuration for noble gases and is used in writing electron configurations. The symbol is enclosed in brackets.
what is the noble gas electron configuration for ruthenium
The electron configuration and noble gas core for Ca2+ is 1s22s22p63s23p6
Definition: A noble gas core is an abbreviation in an atom's electron configuration where the previous noble gas's electron configuration is replaced with the noble gas's element symbol in brackets. ... This is the noble gas core notation of sodium.
The electron configuration and noble gas core for Li+ is that of He: Li+: (1s2, 2s0)
The noble gas core is a representation of the electron configuration for noble gases and is used in writing electron configurations. The symbol is enclosed in brackets.
The electron configuration of helium is: [Xe] 4f15d16s2.
what is the noble gas electron configuration for ruthenium
The "Noble gas electron configuration," or the condensed electron configuration, for F is [He] 2s2 3p5.
The "Noble gas electron configuration," or the condensed electron configuration, for F is [He] 2s2 3p5.
[He] 2s2 2p4
The noble gas electron configuration of Te is [Kr]4d10.5s2.5p4.
The noble gas electron configuration indium is[Kr]4d10.5s2.5p1.
No Such ... all atoms have an electron configuration, yet Ca++ is not a noble gas.