kevlazo789 kevlazo789

04-09-2017
Chemistry

contestada

An atom of potassium has 19 protons and 20 neutrons. what is its mass number?

Respuesta :

Tefnut09 Tefnut09

29-09-2021

Answer:

39

Explanation:

Mass number = Number of protons + number of neutrons

Therefore,

19 + 20 = 39

Answer Link

Otras preguntas

In devising a route to get water from a local lake to its central water storage tank, the city of Rocky Mount considered the various routes and capacities that

In making an alliance, Yanomamo women of the__village are married to men of the__village. 1) weaker or stronger 2)weaker or stronger

Solve for x. 10= in ( x - 5 )

equation for pressure at a depth H inside a fluid PLSS URGENTT

PLSSSSSS HELPPPP MEEE WITHH THISS QUESTION ASAP NO GUESSING AND ANSWER CORRECTLY!!!!!! Which of the following can be used to describe the crowds who attended Ja

what is the sum of the geometric series? a. 21/2 b. 21/8 c. 21 d. 10

The ___ personal to determine that they had too much drink is

Please help ASAP!!!!! Answer the question in the image.

Which statement about electromagnetic waves is true? A. Electromagnetic waves require a medium to travel. B. Electromagnetic waves don't require a medium to t

What is a mitochondria