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

The first battle of the Spanish-American War was fought in Havana, Cuba the Philippines Miami, Florida Puerto Rico

Which author portrayed upper-class Americans in his or her novels? a. Jack London b. Sarah Jewett c. Edith Wharton d. Stephen Crane

During the Han Dynasty civil service was determined by _______. a. birth c. royal appointment b. merit d. the council

A scientist at a large natural history museum has a collection of fossils that were found throughout the world. Only a few of the fossils represent species that

Setting up quoted passages includes all of the following tactics EXCEPT

Which geographic factor enabled the German blitzkrieg to succeed? (1) swift running rivers (2) mountain ranges (3) relatively flat terrain (4) tropical climate

how would you write 62.22 in expanded form

Imagine that an exchange student from China visits your class. While your teacher discusses how the United States has a limited government, the Chinese student

How to round a whole number to the nearest tenth?

can u help me on the first one: a ship going out of sea goes out of sight