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 ( 31+ )
Otras preguntas
Describe how the mood in “The Monkey’s Paw” foreshadows what happens in the story.
According to george Pullman what determines wages
Which proportion would you use to set up to change 6 cups to pints?
Describe the number and type of roots for the polynomial (how many real and complex?). x3 + 5x2 – 4x – 2 = 0
If point P is at the center of the circle, and the length of equals 12 inches, which is the length of AP? a)4.5 inches b)6 inches c)9 inches d)12 inches
What ended warfare between the French and English between 1689 and 1763?
Which statement is true about the U.S. Constitution? A) It establishes a federal government with unlimited power. B) It explains the organization of the federa
can someone help please
Which scene from "Shooting an Elephant" is most likely a metaphor for the imperialists' misguided understanding of how their own system works? a.The elephant's
Select all that apply. What were two of the reasons for the Great Schism?
