bucketofwaterd bucketofwaterd

01-10-2020
Chemistry

contestada

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

How many scoops of dog food do five dogs and a puppy eat in a week if each dog eats two scoops per day and the puppy eats half as much as a dog.

HELP PLEASEEE!!!!! SCHOOL START TOMORROW. NUMBER 21 and 22 ONLY

What group supported political machines

Factor the sum or difference..... and then chose the correct answer from the options below.

SOLVE THE EQUATION BY COMPLETING THE SQUARE!!!!! HELPPPPPPPPPP!!!!!!!!!!!

HELPPPPPPP!!!!!!!!!!!!!!!! A ball is thrown from an initial height of 2 meters with an initial upward velocity of 11 m/s. The ball's height h (in meters) after

Please help me 75Kg of grapes are equally distributed to 6 children. How many grapes does each child get?

Factor the binomial or identify it as prime. 2z4 – 2 A. 2(z2 + 1)(z2 – 1) B. 2(z2 + 1)(z – 1)(z + 1) C. Prime D. 2(z2 + 1)2

Complete the table to make this a proportional relationship

What were the immediate and secondary causes of the civil war? Please help if you can. Thanks!