Question

Would an electron in the 1s orbital of lithium require the same energy to move to a higher energy level as an electron in the
1s orbital of silver?

Answer 1

Answer:

See explanation

Explanation:

We must remember that the energy required to move an electron from the 1s orbital to a higher energy level depends on the size of the nuclear charge.

The higher the nuclear charge, the more closely held the 1s electron of the atom is to the nucleus and the more difficult it is to excite this electron.

Hence, it requires more energy to excite the 1s electron of silver having a larger size of nuclear charge than it is to excite a 1s electron in lithium.