Jordanramirez51 Jordanramirez51

19-06-2018
Physics

contestada

Potassium has a mass number of 40 and an atomic number of 19. How many protons does it have?

A.59
B.21
C.19
D.40

Respuesta :

19-06-2018

The answer is C.
Potassium-40 or any type of potassium always has an atomic number 19 and 19 protons.

Answer Link

valeera valeera

19-06-2018

The answer is c. 19

The atomic number always represents number of protons

Answer Link

Otras preguntas

how do GIS,GPS,VGA,and remote sensing work together to provide us with a more complete understanding of what is happening at a local and/global level

What transformation maps quadrilateral EFGH to quadrilateral QRSP?

The invention and use of the microscope showed scientists that germs could cause illness. Although there had been various understandings before for why people b

-2- 5/4x =13 can someone pls help me!!!

Dalton theorized that atoms are indivisible, but the discovery of particles changed this theory. scientists now know that atoms are made up of electrons, which

maureen has missed her period and has been vomiting.Which hormone levels will be checked using a urine pregnancy kit to confirm that she is pregnant

Respond to the question, “If you lived 2000 years ago, which would be the best to own: a horse, a cow, or a dozen chickens? Why?” This is a history question, p

In the game of "odd man out" each player tosses a fair coin. if all the coins turn up the same except for one, the player tossing the different coin is declared

Will’s meal of grilled chicken strips and carrots contained a total of 333 calories. The bag of grilled chicken strips contained x servings of 110 calories each

aaaaa someone help please