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 probability of making the basketball team is 29%, the probability of making the softball team is 34%, and the probability of making one or the other is 50%.

Calculate the density of an object that has a mass of 50.7 g and displaces 8.9 mL of water.

don't know how to solve 100+0.60x=20+0.80x

Why do scientists do at least 3 trials when conducting an expirement?

explain one way to add 3 digit numbers

Correct answers only for number 31

Could anyone help me out ?

For u.s. businesses with strong export capabilities, expansion of u.s. trade agreements with other countries creates:

What is science describe the steps involved in a scientific process what is data what is a model distinguish among a scientific hypothesis a scientific theory a

In the event that you are exposed to infectious materials by being accidentally stuck with a used needle, you should report it to your supervisor and seek medic