kelly2403 kelly2403

16-09-2019
Chemistry

contestada

what is the mass number of element in an atom that has 20 protons and 17 neutrons?

Respuesta :

pranav109503 pranav109503

16-09-2019

Answer:

37 amu

Explanation:

Why: mass number is the number of protons + the number of neutrons. 20+17=37

Hope this helped you!:)

Answer Link

Otras preguntas

Can someone answer thisA speech on sdg 3 good health and well-being of afghanistan.I will mark BRAINLIEST

How is an adjective phrase different from an adverb phrase?A. An adjective phrase describes an action; an adverb phrase describes a person, place or thingB. An

PLEASE NO LINKS OR WILL BE REPORTED Was it right or wrong for the United States to drop the atomic bomb on Japan?

100 POINTS! What is the value of x? Enter your answer in the box. x =

In a certain chemical, the ratio of zinc to copper is 3 to 19. A jar of the chemical contains 494 grams of copper. How many grams of zinc does it contain? ent

Case #4: Hector, a 30-year-old man, began using alcohol and other drugs at the age of 13. He was in street gangs, involved in crimes, and incarcerated as a juve

If the Lenght of Rectangle is 10 cm and its Breadth is 15 cm . Then find the Area of Rectangle ?

9 1/4 −(2 1/4 + 3/7 a)

what does "the sun achingly bright glaring, sharply and soaking the land with relentless heat" mean?

it is easier to observe ramadan in a muslim country than it is in the uk evaluate this statement.