Question

use the image below, which shows an isotope of chlorine, to determine the number of protons, electrons, and neutrons in a chlorine atom with a mass of 35 amu. 35 cl chlorine 17 17 protons, 17 electrons, and 18 neutrons 17 protons, 18 electrons, and 18 neutrons 17 protons, 17 electrons, and 54 neutrons 18 protons, 18 electrons, and 17 neutrons

Explanation:

Step1: Identify proton number

The atomic number of chlorine is 17. The atomic number is equal to the number of protons. So, the number of protons is 17.

Step2: Determine electron number

In a neutral atom, the number of electrons is equal to the number of protons. Since the chlorine atom is neutral, the number of electrons is also 17.

Step3: Calculate neutron number

The mass - number is 35 amu. The mass - number is the sum of protons and neutrons. So, the number of neutrons = mass - number - number of protons = 35 - 17=18.

Answer:

17 protons, 17 electrons, and 18 neutrons