Question

Which two neutral atoms would have the same number of valence electrons, according to the highest nsxnpy in their electron configurations?ChlorineSeleniumSodiumSulfurPhosphorusCalcium

Answer 1

In this question, we have to choose two neutral atoms that will present the same number of valence shell electrons, in order to do that, we can look for these elements in the periodic table, the elements that are in the same group will have the same number of electrons in the valence shell, this is the case of Sulfur and Selenium, both are in group 6 and present 6 electrons in the valence shell