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

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

All of the following are basic needs of young children, except A. sleep. B. love. C. play. D. education.

5y-9=16 guess and check

How to solve 8 to the power of negative one third

Answer for brainlest What does conjunction and disjunction mean? (Plz explain in ur own words)

How many point are contained in a line

Which sentences contains an adverb clause? 1. Darla set up a studio because she enjoyed painting. 2. As Aaron was having a midnight snack, he heard a loud noi

The price of a item has dropped to $91 today. Yesterday it was $130. Find the percentage decrease.

PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!

(Citizenship 02.01 MC) Which of the following quotes best reflects the principle of limited government in the Declaration of Independence? (3 points) "All men..

Which of the following perceptions influence why and how people drink: A) how much we think others are drinking B) how often we think others are drinking C) wha