brennabananas7431 brennabananas7431

03-10-2017
Chemistry

contestada

If the atomic number of an element is 9 and the mass number is 19, how many neutrons does the atom have?

Respuesta :

Аноним Аноним

05-10-2017

To find the number of neutrons.....

NEUTRONS = MASS NUMBER - ATOMIC NUMBER ( PROTONS)

NEUTRONS = 19 - 9

So this element has 10 neutrons

Answer Link

Otras preguntas

“The wisest among my race understand that the agitation of questions of social equality is the extremest folly, and that progress...which will come to us must

What are the factors of m2-6m+6m-36

Turkey and Israel have similar governments. Click on all of the similarities between the two countries. Question 3 options: They both allow their citizens to v

why did the us senate refused to ratify the treaty of Versailles? woodrow wilson had brought america into the war most Americans did not believe in changing pol

how many solutions are there in the equation 7(x+2)=7x-10 a. 0 b. 1 c. infinitely many

Two circles, called c1 and c2, are graphed below. The center of c1 is at the origin, and the center of c2 is the point in the first quadrant where the line y=x

what is the value of a3

PLease help me with geometry

what is the range of the middle 50% of data a. 2 b. 3 c. 6.5 d. 8

Kirsten and Molly are on a 3-day bike ride. The entire route is 156 miles. On the first day, they biked 64 miles. On the second day, they biked 45 miles. How m