Electronic structure and the periodic table

Chemistry

Carbon has six protons and {{}} electrons.

What is the correct electronic structure for beryllium?

Which element has the electronic structure of 2,8,4?

Match the element to the number of electrons in the **second** shell of its atom.

Match the element to the number of shells in its atom.

Which subatomic particles are located in shells?

The energy levels of an atom are also known as {{}}.

All known elements are displayed in the {{}} table.

The number of electrons in an atom is equal to the number of ...