bellbrianna57 bellbrianna57

03-11-2020
Chemistry

contestada

an electrically neutral atom consists of 15 neutrons, 13 electrons, and a number
of protons. What is its mass number?

A.13

B.15

C.28

D.30

Respuesta :

lukegreen1977 lukegreen1977

03-11-2020

Answer:c

Explanation: it states that the atom is neutral, meaning the number of electrons and protons are the same. so if there are 13 electrons, there are 13 protons. And the mass number is neutrons plus protons. So 13+15 is 28

Answer Link

Otras preguntas

–Hola, señora Román. ¿________ usted? –Estoy muy bien, gracias.

Select all the correct answers. What are three reasons that the United States seeks foreign cooperation to stop terrorism? The United States lacks the expertise

She didn't come either.( change into affirmative)

2 (x − 3) = 5x − 3 (x + 2)

-Which Tort Reforms should be made?

find values of 3sin^2x-2cosx-3=0

Part AWhat are the central ideas in the Newsela article "Health Benefits of Reading, Writing, Are Not Just for Patients"? Reading and writing can help cure dise

What is the correct choice ?

Why is economic growth important? Give two reasons.

What is cell ? Explain I will give you brainliest as soon as possible