Respuesta :
Considering the definition of peeriod, group and electronic configuration, the period and gruop is 3 and 16 respectively.
The elements are arranged in horizontal rows, called periods, and in columns, called groups.
The Electronic Configuration of the elements is the arrangement of all electrons of an element in energy levels and sub-levels (orbitals).
The placement of the elements in the periodic table is done taking into account the electronic configuration.
In each period, the elements whose last level of their electronic configuration coincides with the number of the period appear.
On the other hand, in each group appear the elements that present the same number of electrons in the last occupied level or valence shell.
In this case, the element has the electron configuration. [Ne]3s²3p⁴
The outermost electrons are at level 3. So the element is in period 3.
You have 6 electrons (2 in the s sublevel and 4 in the p sublevel) in the last level. So the element is in group 16.
Finally, the period and gruop is 3 and 16 respectively.
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