Lithium (Li) has the electron configuration 1s2 2s1.
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Li
The electron configuration is the number of electrons in each energy level of an element. The electron configuration of Li is, 1s2 2s1. The electron configuration of F is, 1s2 2s2 2p5.
1s2 2s1
1s2 2s1 2p3 3s1
Lithium electron configuration: 1s2 2s1, or in shorthand: [He] 2s1 Thus in LiF the Li cation (Li missing one electron to get its nobel gas configuration of He) it is Li+: 1s2 2s0, or in shorthand: [He] 2s0, This ion does NOT have 8 (octet) electrons, although it has a nobel gas configuration of He: 1s2.
When is goes to the excited state is jumps an energy level, not just a subshell.
The electron configuration is the number of electrons in each energy level of an element. The electron configuration of Li is, 1s2 2s1. The electron configuration of F is, 1s2 2s2 2p5.
1s2 2s1
1s2 2s1 2p3 3s1
Lithium electron configuration: 1s2 2s1, or in shorthand: [He] 2s1 Thus in LiF the Li cation (Li missing one electron to get its nobel gas configuration of He) it is Li+: 1s2 2s0, or in shorthand: [He] 2s0, This ion does NOT have 8 (octet) electrons, although it has a nobel gas configuration of He: 1s2.
There are four electrons in a Beryllium atom. Hence the mono positive ion has only three electrons. Therefore the electron configuration is 1s2 2s1.
Electronic configuration of Lithium is 2,1. So in second shell it can hold 1 electron.If it will combine with some other element it will give out its electron in second shell.
When is goes to the excited state is jumps an energy level, not just a subshell.
[He] 2s1
1s22s1
[He] 2s1
.. [Li]+ [:I:]- (put the last 2 pairs above and below the "I" this wont let me) ..
[He] 2s1