Register
How many neutrons does element x have if its atomic number is 54 and its mass number is 151?
169k views
5 votes
How many neutrons does element x have if its atomic number is 54 and its mass number is 151?

User Iurii Drozdov
by
9.2k points

1 Answer

2 votes
Atomic mass (z) - atomic number / # of protons (n) = # of neutrons:

151-54=97

You can easily tell what element X is. With an atomic number of 54, the element is the noble gas Xenon (Xe).
User Ddeamaral
by
8.0k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

At sea level, water boils at 100 degrees celcius and methane  boiled at -161 degrees celcius. Which of these substances has a stronger force of attraction between its particles? Explain your answer
Physical properties of minerals graphic organizer
A snowball is launched horizontally from the top of a building at v = 16.9 m/s. If it lands d = 44 meters from the bottom, how high (in m) was the building?
what is a device that transforms thermal energy to mechanical energy
How many light sources do you know Pls list them
Link Copied!