Electronic configuration of an elements 13x in the subsidiary energy level is
Answer Details
The electronic configuration of an element 13x in the subsidiary energy level is 1s22s22p63s23p1.
The electronic configuration of an element describes the way electrons are arranged in the energy levels or shells around the nucleus. The first energy level can hold up to 2 electrons, the second energy level can hold up to 8 electrons, and the third energy level can hold up to 18 electrons.
For element 13x, we can determine its electronic configuration by using the periodic table. Element 13x is in group 13, which means it has 3 valence electrons. The valence electrons are the outermost electrons that are involved in chemical reactions.
The electronic configuration of element 13x in the ground state, which means it is not excited, is 1s22s22p63s23p1. This means that the first energy level is full with 2 electrons (1s2), the second energy level is also full with 8 electrons (2s22p6), and there is 1 electron in the third energy level (3s23p1). This electron is a valence electron and is involved in chemical bonding.
The other options listed do not have the correct number of electrons in the valence shell, and therefore are not the correct electronic configuration for element 13x.