jasmine76 jasmine76

18-10-2016
Chemistry

contestada

What is the mass of an element with 78 protons and 78 neutrons

Respuesta :

Perlerbear Perlerbear

18-10-2016

156. Atomic mass if the number of protons and neutrons within an atom.

Answer Link

18-10-2016

mass number=number of protons+number of neutrons
so mass number of the element you stated = 78+78 = 156 au

Answer Link

Otras preguntas

How has Coronavirus impacted the U.S. and/or global community? Utilize online resources to provide two examples for three of the factors below. Please explain y

You are making pudding. The recipe asks for 3/10 cup of sugar and you want to make 8/2 of the original recipe. How many cups of sugar will you need?

Write an equation ( in slope form or point slope form) of a line with slope 1/2 that passes through the point (-4,-7)

Three words that describe Yucatán peninsula

My brother is 5 years older than I am. My sister is 3 years younger than I am. How old was my brother when my sister was m years old?

Sara says that median does not have to be one of the numbers in a set. Is her statement correct? Please Explain. i will mark as braintlies !!!!!!!!!

Members of the phyla Cnidaria and Bryozoa both have a circle of tentacles, which they use for feeding. Besides the difference in size, how else do these feeding

How can you get the laundry done without a shower

Place these steps in a trial in the correct order, from first to last.

How could the text “Trick Tips: Flatground Ollie” been more effective and why?