QueenBreanna2002 QueenBreanna2002
  • 03-03-2017
  • Chemistry
contestada

If a neutral atom has a mass of 15 amu and an atomic number of 7, determine the number of protons, neutrons, and electrons in the atom. (4 points)

Respuesta :

iiwaffle
iiwaffle iiwaffle
  • 03-03-2017
Atomic number = amount of protons, so 7 protons.

Because it is a neutral atom, that means that the number of protons has to be the same as the number of electrons. So, there are 7 electrons.

The mass number of an atom, 15, is the total number of protons + neutrons, so 15 - 7 = 8. There are 8 neutrons
Answer Link

Otras preguntas

This is an equation in the second edition “dynamics of flight” book. I am trying to figure out the equation. I know that v=velocity, but I’m not sure about what
A play yard has a sandbox in the shape of rectangular prism with a height of 1.5 ft and a base that is 5 ft wide by 6 ft long. During the summer, the sandbox h
What is 4-(2x-3)=3??
calculate the result: 63,765*60/70*5,280
Please I want the answer!!!
Which of the following is the result of expanding
in the years leading up to world war II how ere germany’s and japan’s goals similar
A substance of unknown mass absorbs 138 kilojoules of energy, going from 298 to 303 kelvin. if the specific heat of the substance is 7.11 j/g·°c, how much of th
Which word correctly completes this conversation? Beatriz: Estos días a menudo tengo dolor en los dientes. Luisa: Te aconsejo ir al _________.
I need help on these two question