prinncess56bg prinncess56bg
  • 23-01-2017
  • Chemistry
contestada

the mass number is an average of the masses of all naturally occurring isotopes of an element true or false

Respuesta :

SapphireMoon
SapphireMoon SapphireMoon
  • 23-01-2017
False. The mass number is the sum of the protons and neutrons in the most common isotope. The atomic weight or atomic mass is the average of the masses of the naturally occurring isotopes.
Answer Link

Otras preguntas

Allison has 6 blue pencils and 10 yellow pencils.sadie has 24 pencils that are either blue or yellow.the ratio of blue pencils to yellow pencils is the same fo
Circle 6 numbers for a total of 31.8,9,91,5,81,1,1
Why did the Marbury v. madison case happen?
is 5/12 bigger than 3/7
does anyone have any ideas (easy) on cell simile projects. busy week but due tomorrow.HELP
what do you think was the greatest scientific advance of the Hellenistic period? why?
In which one of the following sentences is the number written correctly? A The college has an endowment of more than $187 million. B The parcel of land was ad
Why did the Marbury v. madison case happen?
What is a medial moraine, and how is it formed?
What is the difference between proper and common adjectives?