how many energy levels contain electrons in the element li? 1 energy level 3 energy levels 2 energy levels
how many energy levels contain electrons in the element li? 1 energy level 3 energy levels 2 energy levels
Answer
Explanation:
Step1: Determine the atomic number of Li
The atomic number of Li (lithium) is 3.
Step2: Write the electron configuration
The electron configuration of Li is (1s^{2}2s^{1}).
Answer:
2 energy levels