Question

a total of 3 shells with three electrons in its valence shell name the element.​

Answer 1

Answer:

The element is silicon

Explaination:

d-first shell is completely filled and valence shell has three electrons so its electronic configuration will be 2,3. therefore the element is Boron. e-first shell can have two 2 electrons

Answer 2

The element is Aluminium with the atomic number 13 which means there will 2 electrons in the first shell (K shell), 8 electrons in the second shell (L shell) and 3 electrons in the outermost shell (N shell)