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

Calculate volume of a prism if base is 8.2 squared centimeter and height is 7 cm

On January 1, 20X8, Package Company acquired 80 percent of Stamp Company's common stock for $280,000 cash. At that date, Stamp reported common stock outstanding

i really need an answer fast

Why do you think it was important for the Southern troops to keep their horses after the war? Help me now pls i need the answer now!!!( 50 points)!!!!!!

A 50-loop circular coil has a radius of 3 cm. It is oriented so that the field lines of a magnetic field are perpendicular to the coil. Suppose that the magneti

What is the decimal multiplier to increase by 5.3%?

Find the values of the missing angles

Use the worked example above to help you solve this problem. An Alaskan rescue plane drops a package of emergency rations to stranded hikers, as shown in the fi

The Employment and Training Administration reported that the U.S. mean unemployment insurance benefit was $238 per week (The World Almanac, 2003). Aresearcher i

which statement would most likely be made by a supporter of sanctions as a tool of foreign policy? a. the united states has the most powerful military in the wo