Question

1. oxygen has an atomic number of 8 and an atomic mass of 16. how many protons, neutrons, and electrons does it have?

Explanation:

Step1: Determine number of protons

The atomic number is equal to the number of protons. Given atomic number of oxygen is 8, so number of protons = 8.

Step2: Determine number of neutrons

Atomic mass = number of protons + number of neutrons. So number of neutrons = atomic mass - number of protons. Given atomic mass = 16 and number of protons = 8, then number of neutrons = 16 - 8 = 8.

Step3: Determine number of electrons

In a neutral atom, number of electrons = number of protons. Since number of protons = 8, number of electrons = 8.

Answer:

Protons: 8, Neutrons: 8, Electrons: 8