Moisesp345
Moisesp345
02-10-2020
Chemistry
contestada
What is the mass number of the atom shown?
Respuesta :
legoshes
legoshes
02-10-2020
Answer:
21
Explanation:
Formula;
Mass number = number of protons + number of neutrons
= 9 + 12
= 21
Answer Link
VER TODAS LAS RESPUESTAS ( 67+ )
Otras preguntas
What was the terrorist’s main goal in committing the September 11, 2001, attacks? to get the United States to recognize al-Qaeda as an official government to
The equation below shows the relationship between the temperature in degrees Celsius, C, and degrees Fahrenheit, F: F = 9 over 5 C + 32 Which of the following f
4 = 2/3 ( x + - 12 )
why was water considered land when transporting heavy cargo
An equilateral triangle has sides of length 20. to the nearest tenth, what is the height of the equilateral triangle? 1. 10.0 2. 11.5 3. 17.3 4. 23.1
The area of the polygon is 27 mi2. What is the formula that shows the length of side a?
is is easiest to order your ideas when you have A. collected feedback from as many people as possible B. completed your research developed an outline to your
Autotrophs take solar energy and transform it into a sugar known as what
Malik wants to have at least $30 in his bank account so that he can purchase some songs. When he starts saving he has $8, he is given $7 by his aunt, and then e
Help. Will give most Brainly.
