jgsdjfkklfj7025 jgsdjfkklfj7025

01-06-2018
Chemistry

contestada

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

Respuesta :

01-06-2018

19. The atomic number is the same as protons and electrons unless it have a - or a + charge the electrons are going to change

Answer Link

Otras preguntas

What is the simplified form of the expression k^3(k^7/5)^-5

What is the significance of the declaration of independence?

Because it is passed essentially intact from father to son, y chromosome research has been particularly useful in improving our understanding of __________.

.........................................................................

Why is coal not classified as a mineral? a. it is made of organic material b. it has no crystal shape c. it is not a solid d. it does not occur naturally p.

i need help in the number 3

While cultures view time differently, punctuality is considered good taste everywhere you go. True False

Why did South Carolina need to govern itself despite the original character? There were few colonists who were ready to do the job Parliament wanted colonies to

Read this excerpt from Mark Twain's Life on the Mississippi: [A] pile of "skids" on the slope of the stone-paved wharf, and the fragrant town drunkard asleep in

of the following numbers , which one os prime : 14,13,21,23