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

Hi need the answers(Well ya know, explain it t me at least) to all 5 by Friday & I only need 1-4) thank you!!!!!! all in advance!!

what does it mean to alter a landscape?

Flowers usually contain more stamen than pistils. Why do you think this is?

These courts are similar to district courts in function, operation, and jurisdiction. 1. Grand jury courts 2. Territorial courts 3. Petit jury courts 4. Judicia

Did I get the right answer

This device can be used to remove most biological agents that enter a house. a. High Efficiency Particulate Air (HEPA) filter. B. Pure Air Filtering System (PA

Some scholars believe that before they can have true civilization, societies must develop _____. 1.cities 2.automobiles 3.farmland 4.government

why are all the different parts of the cells necessary

Which expression tepresents "the quotient of 10 and 2, plus 3"?

Which of these choices is a geographic resource that contains many maps within one book?