sqye9013 sqye9013

11-09-2018
Chemistry

contestada

An isotope of radon has 86 protons and 137 neutrons. What is the mass number of this isotope?

Respuesta :

Lhoang2 Lhoang2

22-09-2018

86 + 137 = 223
protons + neutrons = mass

Answer Link

Otras preguntas

Read the excerpt from a New York Times review written about the play entitled a mans world. Which statement best describes this excerpt?

In what ways do goals and objectives help managers control the organization?

Rewrite the difference as a sum of the fractions using the lowest common denominator 2/3 from 5/6

Steering to the right will result in weight transfer to

what did the delegates at the constitutional convention consider a weakness of the articles of confederation?

Find X for the traingle in the picture attached.

Can I please have some help.?

In 1998, scientists discovered that the expansion of the universe has been accelerating. What force is causing this phenomena? dark energy Hubble’s law the Do

Triangle ABC is an obtuse triangle with the obtuse angle at the vertex B angle A must be?

the surface areas of two similar figures are 36 in2 and 49 in2 . if the volume of the smaller figure is 648 in3, what is the volume of the larger figure?