Which two elements have the same number of energy levels with electrons in them?(1 point)Responseskrypton and neonkrypton and neonneon and sodiumneon and sodiumboron and oxygenboron and oxygenlithium and francium
krypton and neon
Krypton and Neon have the same number of energy levels with electrons in them.
To determine which two elements have the same number of energy levels with electrons, you need to look at the electron configuration of each element.
The electron configuration of an element represents the arrangement of electrons in its energy levels or electron shells. The number of energy levels can be determined by observing the highest value of the principal quantum number in the electron configuration.
For example, let's consider the electron configurations of the given elements:
- Krypton (Kr): 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6
- Neon (Ne): 1s^2 2s^2 2p^6
- Sodium (Na): 1s^2 2s^2 2p^6 3s^1
- Boron (B): 1s^2 2s^2 2p^1
- Oxygen (O): 1s^2 2s^2 2p^4
- Lithium (Li): 1s^2 2s^1
- Francium (Fr): 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4f^14 5d^10 6p^6 7s^1
Now, let's analyze the electron configurations:
- Both Krypton (Kr) and Neon (Ne) have two energy levels with electrons. Therefore, the correct answer is krypton and neon.
So, the elements krypton and neon have the same number of energy levels with electrons.