bucketofwaterd bucketofwaterd

01-10-2020
Chemistry

contestada

(40 pts)Identify the mass number of an ion with 20 protons, 22 neutrons, and 18 electrons.

Respuesta :

Nikeon202 Nikeon202

14-10-2020

Answer:

42

Explanation:

Relative mass = number of protons + number of neutrons

Relative mass = 20 + 22

Relative mass = 42

Answer Link

Otras preguntas

Can you describe the structure of the government set up under the articles of confederation?

Which is not a property of a mineral? a. hardness b. diffraction c. cleavage d. luster

Which nation was especially worried about Japan’s victory in the Sino-Japanese War?

To make this equation true we need parentheses 15 + 3 ÷ 3 = 6 A) nowhere B) around 3 ÷ 3 C) around 15 + 3 D) ar

2048 est une puissance de 2. Laquelle?

Which constitutional principle prohibits an individual state from declaring war? limited government federalism balances popular sovereignty

List four physical properties of a glass of milk

Which of the following terms best describes what an economy experiences when the prices of goods and services increase and the value of currency decreases?

What is the inverse of the function f(x)=-x?

Write a division problem that has a 3 digit dividend and a divisor between 10 and 20