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

N the world's lowest-income nations, two in ten children born die by the age of

The ___ project was the top secret project tasked with developing atomic weapons in the United States? A. Philadelphia B. Manhattan C. Nuclear D. Hiroshima

describe how the resistance of the filament lamp changes as the current through it increases.

Which English reformer called for change in the church during the 1300's

Which of the following excerpts from Fast Food Nation best provides evidence that fast food restaurants are designed for using unskilled labor? Her family’s mo

who is the present president of liberia

need help anybody know how to do this

Plane ABC and plane BCE ____ be the same plane. Question 4 options: cannot must may

Your best friend has been feeling sad for more than two weeks, and you are concerned that he may be experiencing depression. How can you have a positive impact

I need the answer and the path work ok