Element, the electronic formula of the atom of which 1s2 2s2 2p6 3s2 3p4 corresponds

Element, the electronic formula of the atom of which 1s2 2s2 2p6 3s2 3p4 corresponds to the hydrogen compound hcl, ph3, h2s, sih4

Let’s analyze the electronic formula of the element and try to identify it.

From the electronic formula 1s2; 2s2, 2p6; 3s2, 3p4, it can be seen that the p-sublevel at the third level contains only 4 electrons. This means that 2 more electrons are not enough to complete. In compounds with hydrogen, the elements act as an oxidizing agent and pull a single hydrogen electron toward them. The desired element lacks only 2 electrons, which means it will form a compound according to the formula EN2.

Also, the Electronic Formula tells us that this element has three electronic levels, which means it is located in the third period of the periodic table. There are 6 electrons on the third (external) electronic level, which means the required element is located in the sixth group of the table. Sulfur is found at the intersection of 3 periods and VI group.

It turns out that only H2S – hydrogen sulfide – is suitable for our parameters from the list of hydrogen compounds.