How many total orbitals are within the 3s 3p, and 3d sublevels of the third energy level?
A. 8
B. 9
C. 1
D. 4

It’s b. mass i searched it up

Both models are effective because they show the valence electrons, and these valence electrons indicate the reactivity of an element.

Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

Its the second one nonmetals are moldable and easily shaped