blatss8jaimeJaccoyc blatss8jaimeJaccoyc

03-03-2017
Chemistry

contestada

How many neutrons does element x have if its atomic number is 42 and its mass number is 160? neutrons?

Respuesta :

armyguy1050 armyguy1050

06-03-2017

118
mass number is the protons plus the neutrons.
And the atomic number is equal to the amount of protons in an element.
Therefore, 160-42=118.

Answer Link

Otras preguntas

If Yang solves the inequality -4y> -40, then which of the following answers would be true for this claim?

What is the range of the function g(x) = –3sec(2x + 4) – 1? (–∞, –2] ∪ [0, ∞) (–∞, –4] ∪ [0, ∞) (–∞, –4] ∪ [2, ∞) (–∞, –5] ∪ [1, ∞)

If 1000 pencils cost $20, how much would ten pencils cost? Can somone explain

Which source would be most appropriate for researching the question "How does social media affect personal relationships?” a blog post discussing the blogger’s

A 9.0x10^-2kg ice cube at 0.0 degrees Celsius is dropped into a styrofoam cup holding 0.35 kg of water at 13 degrees Celsius. A. Find the final temperature of t

which word best illustrates the mood of the poem nothing gold can stay by Robert forest

Which two points on the number line represent numbers that can be combined to make zero? B and D A and B C and D A and C

Suppose you are writing a speech emphasizing the importance of hard work to achleve your goals, which you will deliver to your peers at your high school graduat

what is the theme of the story about the sick girl is about: death and dying.

Assess the Author’s writing style in "The Science of Baseball"Thank you to anyone who answers