An atom of element X has an electronic configuration of $1s^22S^22p^63s^23p^3.$ In which group of the periodic table is X?

Correct answer is E

You can determine the group of an element by the number of electrons of their outermost shell.

Hence; this element silicon belongs to group 5 OR The Group to which an element belongs to, can be identified by adding the number of electrons of the orbital with the highest principal quantum number, in this case, 3s2 and 3p3. Therefore, 2+3 is equal to 5

note; if the highest principal quantum number is just 3s2 for example then the element belong to group 2.

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An atom of element X has an electronic configuration of $1s^22S^22p^63s^23p^3.$ In which group of the periodic table is X?

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An atom of element X has an electronic configuration of 1s22S22p63s23p3. 1s^22S^22p^63s^23p^3. In which group of the periodic table is X?

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An atom of element X has an electronic configuration of $1s^22S^22p^63s^23p^3.$ In which group of the periodic table is X?