Question 2/4 Which of the following equations is true? A electrons+neutrons=atomic number B electrons+protons=atomic weight C. protons + neutrons=atomic weight

## Step1: Understand the components of an atom### An atom consists of electrons, protons, and neutrons. The atomic number is the number of protons in an atom, and the atomic weight (or atomic mass) is the sum of protons and neutrons.## Step2: Evaluate each option### - Option A: is incorrect because the atomic number is defined by the number of protons.- Option B: is incorrect because the atomic weight is the sum of protons and neutrons.- Option C: is correct because the atomic weight (or mass number) is indeed the sum of protons and neutrons.