the number of protons in an atom is known as its atomic number. atoms that share the same atomic number are…
the number of protons in an atom is known as its atomic number. atoms that share the same atomic number are classified as the same chemical element. below is a model representing an atom of the chemical element lithium. what is lithiums atomic number?
Answer
Explanation:
Step1: Identify protons in lithium model
Count the number of yellow - colored particles (protons) in the model.
Step2: Determine atomic number
The number of protons is the atomic number. In the model, there are 3 protons.
Answer:
3