Aluminum (Al) has three valence electrons and a total of three subshells. Without using the periodic table, in which group and period is aluminum located?

AGroup 3B, Period 6
BGroup 1A, Period 1
CGroup 6A, Period 3
DGroup 3A, Period 3

I chose D

Atomic number of aluminium is 13 and its electronic configuration is \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{1}\). As here n = 3 this means that aluminium element belongs to period.

Since, it contains 3 unpaired electrons. Therefore, in order to attain stability it will readily lose its valence electrons and hence, acquires as charge of +3.

This means that aluminium element belongs to group 3A and period 3. As it is a p-block element.

Thus, we can conclude that aluminium is located in Group 3A, Period 3.

Aluminum (Al) has three valence electrons and a total of three subshells. Without using the periodic table, in which group and period is aluminum located? AGroup 3B, Period 6BGroup 1A, Period 1CGroup 6A, Period 3DGroup 3A, Period 3 I chose D

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Related Questions

Aluminum (Al) has three valence electrons and a total of three subshells. Without using the periodic table, in which group and period is aluminum located?

AGroup 3B, Period 6
BGroup 1A, Period 1
CGroup 6A, Period 3
DGroup 3A, Period 3

I chose D