the model below shows an atom of an element. what is the atomic number of this atom? 6 8 9 16
the model below shows an atom of an element. what is the atomic number of this atom? 6 8 9 16
Answer
Explanation:
Step1: Recall the definition of atomic number
The atomic number of an atom is equal to the number of protons in its nucleus. In a neutral atom, it is also equal to the number of electrons.
Step2: Count the number of electrons
Count the number of electron - like particles (the ones with charge = - 1) in the model. There are 8 such particles.
Answer:
8