Question

5. Which of the following is correct? (¿Cuál del siguiente está correcto?) A. Protons & electrons both have a mass of 1 (Los protones y los electrones ambos tienen una masa de 1) B. Electrons & neutrons both have a mass of 1 (Electrons y los neutrones ambos tienen una masa de 1) C. Protons & neutrons both have a mass of 1 (Protons y los neutrones ambos tienen una masa de 1) D. Protons & neutrons both have a mass of 0 (Los protones y los neutrones ambos tienen una masa de 0) E. Electrons & neutrons both have a mass of 0 (Los electrones y los neutrones ambos tienen una masa de 0)??​

Answer 1

The correct answer is C, which states that protons and neutrons both have a mass of 1 atomic mass unit. Electrons have a significantly smaller mass and do not contribute as much to the atom's overall mass.

Step-by-step explanation:

The correct answer to which subatomic particles have a mass of approximately 1 atomic mass unit is Protons & neutrons both have a mass of 1 (Protones y los neutrones ambos tienen una masa de 1). Protons and neutrons have approximately the same mass, about 1.67 × 10-24 grams, and scientists define this amount of mass as one atomic mass unit (amu) or one Dalton. Electrons, on the other hand, are much smaller in mass than protons and neutrons, weighing only about 9.11 × 10-28 grams, or approximately 1/1800 of an amu. Consequently, when considering atomic mass, the contribution of electrons is generally negligible, and the atom's mass is calculated based on the number of protons and neutrons alone.