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

Simplify the polynomial, then evaluate for x = 2. x+3x²+2x-3-4x² +6 Ox² + 3x + 3; 5 -x² + 3x +9; 11 x² + 3x + 3; 13 x² + 3x +9; 19 O O

Why sugar is an organic compound

I need help please !!!

What is −314×435 ? Write the answer as a mixed number in simplest form.

Imagine (0) aren’t any mobile phones or computers, and your house (1) internet. It’s the perfect holiday! Our computer doesn’t (2) help us relax. It (3) us

Please help verify the identity of cos (x+ -5pi/4) = -sqrt2/2 (cos x + sin x)

Find the midpoint of the segment with the following endpoints. (-5,-4)(-8,3)

What is a central idea of "Perseus and the Quest for Medusa's Head"? Responses A. An angry king tries to shame Perseus, whom he hates, but the plan backfires w

algebra 2x add 7 - 0x add 3

Carly recorded the number of food items bought at different prices at a supermarket using the histogram below. Which measure of variability would be best to