[Kr] 5s(1)
or, in the longer version
1s(2) 2s(2) 2p(6) 3s(2) 3p(6) 4s(2) 3d(10) 4p(6) 5s(1)
Note: All the numbers in the parentheses are supposed to be in superscript (not sure how to do it) and they represent the number of electrons in the sublevel. The first configuration uses the noble gas Krypton (basically an abbreviated form of electron configuration). Both configurations are according to the Aufbau principle (lower energy levels are filled in first). So, if you're confused when you see, for example, 4s before 3d, this is just according to the principle.
Actually it's [Kr]5s1 4d8 Rhodium has an atypical configuration
The electron configuration for zinc is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10.
The outer electron configuration for oxygen is 2s^2 2p^4. This means that oxygen has 6 outer electrons in its valence shell.
Atomic shorthand uses the noble gas before the element in questionAnswer: Cu: [Ar]4s[1]3d[10]Explanation: Copper Cu is an anomaly. Logically we would write 4s[2]3d[9] but for Cu, having the d sub level full is more stable than having the s sub-shell full and the d sub-shell less than full. Chromium also has this anomaly, and is written [Ar]4s[1]3d[5]
Noble gas notation is a way of simplifying electron configurations by using the previous noble gas's electron configuration as a starting point. For calcium, the electron configuration is: 1s2 2s2 2p6 3s2 3p6 4s2. Using the noble gas argon (1s2 2s2 2p6 3s2 3p6) as the starting point, the noble gas notation for calcium is [Ar] 4s2.
It is [Ar] 3d1 4s2
Yes it is possible to write the noble gas configuration of all elements, though it is not possible to list all of them here.
Actually it's [Kr]5s1 4d8 Rhodium has an atypical configuration
It is a shorthand form of the electronic configuration. A typical example is Potassium Full electronic configuration 1s2 2s2 2p6 3s2 3p6 4s1 Noble gas notation [Ar] 4s1
Electron configuration of uranium is: [Rn]5f36d17s2
The electron configuration of fluorine is 1s2 2s2 2p5.
The noble gas electron configuration of a sodium ion is the same as that of neon, which is 1s² 2s² 2p⁶. This configuration represents the arrangement of electrons in the nearest noble gas element to sodium (Ne) before it loses one electron to become a sodium ion (Na+).
[Ne] 3s2 3p6
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.
The electron configuration of aluminium is [Ne]3s2.3p1.
The electron configuration for zinc is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10.
The outer electron configuration for oxygen is 2s^2 2p^4. This means that oxygen has 6 outer electrons in its valence shell.