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

People in many fields, including architects, economists, feminists, and even theologians, embraced the term postmoderism to express a climate of cultural change

Which island group of India lies to its south west ?

(please explain how you got the answer. thanks) You are packaging expansion packs for the game of checkers. The table below lists the number of each part needed

Which of the following is a surface barrier to infection? skin antibodies antigens lymph nodes

Based on the table of values below, find the slope between points where x = 5 and where x = 10. X y 5 2 7 6 10 7 Answer choices A -1

Most of the earth's surface land is required to produce enough food for the population. True False

Write an equation of the line below.

A line has slope 3 and y–intercept 4. Which answer is the equation of the line? \y=3/4x−4 y = 3x + 4 y = 4x + 3 y=3x−4

Equation A: a=5b + 1 Equation B: a= 3b+ 5 Which of the following is a step that can be used to find the solution to the set of equations?

HELP MEEEEEEEEEEEEEEEEEEEE