Electrons are organized into orbitals of varying levels of electrons. Imagine it as a shell, starting with two orbiting 1s2 electrons. From there, you get 2 more. 2s2. It's the second layer of S. Then you go to 2p6. The p electrons are different in that they're more tightly packed. Then you have 3s2. It's the third layer of s electrons. So, the number designates the level of orbital of that subset of electrons.
It is Aluminum
Silicon
The electron configuration of aluminum (Al) is [Ne] 3s2 3p1
There is no such thing as AI in chemistry. Al (with a lowercase L) is aluminum. It has the electron configuration 1s2 2s2 2p6 3s2 3p1
1s2-2s2-2p6-3s2-3p1
The shorthand electron configuration of aluminum is: [Ne] 3s2 3p1
Aluminium
The electron configuration of aluminum (Al) is [Ne] 3s2 3p1
The element aluminum (atomic number 13) has the electron configuration [Ne] 3s2 3p1 which is completely expressed by 1s2 2s2 2p6 3s2 3p1
That is chlorine and it has seven valance electrons.
Type your answer here... nElectron Configuration: [ Ne]3s2 3p1
[Ne] 3s2 3p1
There is no such thing as AI in chemistry. Al (with a lowercase L) is aluminum. It has the electron configuration 1s2 2s2 2p6 3s2 3p1
1s2, 2s2 2p6, 3s2 3p1or[Ne], 3s2 3p1
1s2-2s2-2p6-3s2-3p1
1s2 2s2 2p6 3s1 3p1
Aluminium.
The shorthand electron configuration of aluminum is: [Ne] 3s2 3p1
1s2 2s2 2p6 3s2 3p13s23p12nd answer :outer electron configuration is the same as valence electron , you can easily find it in the period table : using the number of the group :Group 1 : one, Group 2 :two , Group 3-12 cannot be found instead d electron count is used , group 13 : three , Group 14 : four ans so on until Gruop 18 : Eight