GK
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
[ 2, 8, 1 ]
|
|
|
[ 2, 8, 3 ]
|
|
|
[ 2, 8, 2 ]
|
|
|
[ 2, 8, 4 ]
|
Detailed explanation-1: -The atomic number of Al is 13 and its electronic configuration is 2, 8, 3. So, the electronic configuration of Al3+ is 2, 8.
Detailed explanation-2: -The electron configuration for Aluminum is 1s22s22p63s23p1.
Detailed explanation-3: -Atomic number of aluminium is 13 so its electronic configuration is 2, 8, 3. Since it has 3 electrons in its valence shell, it will lose 3 electrons to complete its octet hence its valency is +3.
Detailed explanation-4: -Hence, The given electronic configuration is Aluminum, which belongs to period 3 and group 13.
Detailed explanation-5: -Aluminium atoms have 13 electrons and the shell structure is 2.8. 3. The ground state electronic configuration of neutral aluminium is [Ne]. 3s2.