funwitfayy funwitfayy

03-09-2020
Chemistry

contestada

A atom has 20 electrons, 21 neutrons, and 20 protons. What is the atomic mass of the atom?

Respuesta :

poudelbinda8 poudelbinda8

12-09-2020

name= calcium

atomic mass= 40.078 atomic mass unit

no of protons= 20

no of electrons=20

Answer Link

Otras preguntas

Why does the Constitution establish the principle of majority rule?

Describe a scenario where a property owner might argue that his property is being “taken” from him by a local government because of a restriction that is put on

find the number of degrees in

what is one example of prose

Which paragraph from the help ASAP!!!! This is for the passage the fictions and fortunes of a famous cookie. passage serves to contrast the fortune code's prese

PLEASE HELP! A person is standing on ice. He throws a snowball with a force of 4 N to the right, while the snowball pushes the person with a force of 4 N to the

How can a device warm food without using fire or electricity?

Is it ok to help others cheat on their homework? Explain your reasoning in 1 to 2 sentences.

what are electromagnetic waves?a) things like longitudinal wavesb) ocean wavesc) sound wavesd) electric magnetic fields that travel through a space very quickly

find the surface area of a cylinder with the height of 10 inches and a base diameter of 6 in