The radius of the 2nd orbit of Li2+ is x. The expected radius of the 3rd orbit of Be3+ is94x49x2716x1627x

The radius of an orbit in a hydrogen-like atom (an atom with only one electron) is given by the formula:

r = 0.529 * n^2/Z Å

where:

• r is the radius of the orbit,
• n is the principal quantum number (the number of the orbit, starting from 1),
• Z is the atomic number (the number of protons in the Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.