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

A person who takes a 10-minute shower might use between 20 and 25 gallons of water,depending on the speed of the water passing through the showerhead . The low

Please help mee :’( I will give brainliest :-)

Which graph shows the solution to the system of linear inequalities? y > Two-thirdsx + 3 y ≤ Negative one-thirdx + 2 Mark this and return

Which of the following is true of a gas? (3 points) A gas is not easily compressed because of the low intermolecular forces. A gas does not easily mix with othe

What the answer now fast correct

Investing widely without regard to risk is called: A. Insider trading B. Selling short C. Buying on margin D. Speculation

A pair of dice is rolled. What is the probability that the sum of the two dice will less than 4 given that the first die rolled is a 2?

In two to three paragraphs, explain how Vietnam’s political boundaries, affiliations, and alliances changed from the end of World War II to 1975, when the count

A cryptarithm is a math puzzle in which the digits in a simple equation are replaced with letters. Each digit is represented by only one letter, and each letter

Please answer question now