question 3\n5 pts\nhow many protons, electrons, and neutrons in oxygen with an atomic mass of 18\n8 protons…

question 3\n5 pts\nhow many protons, electrons, and neutrons in oxygen with an atomic mass of 18\n8 protons, 8 electrons, 7 neutrons\n8 protons, 8 electrons, and 10 neutrons\n9 protons, 10 electrons, and 7 neutrons.\n8 protons, 8 electrons, 8 neutrons
Answer
Explanation:
Step1: Recall atomic number of oxygen
Oxygen has an atomic number of 8. The atomic number is equal to the number of protons and in a neutral atom, the number of electrons is equal to the number of protons. So, number of protons = 8 and number of electrons = 8.
Step2: Calculate number of neutrons
The formula for atomic mass is $Atomic\ mass=Number\ of\ protons + Number\ of\ neutrons$. Given atomic mass = 18 and number of protons = 8. Then number of neutrons = Atomic mass - Number of protons = 18 - 8 = 10.
Answer:
8 protons, 8 electrons, and 10 neutrons