aayanhabib379 aayanhabib379

04-06-2021
Chemistry

contestada

How many neutrons are present in an atom with atomic number 9 and mass number 19?

Respuesta :

Eddie1Wan Eddie1Wan

04-06-2021

Answer:

10 neutrons

Explanation:

N=Z-A ie. number of neutrons=mass number-atomic number

N=19-9=10

Answer Link

Orozco811 Orozco811

04-06-2021

10 what Eddie said is correct

Answer Link

Otras preguntas

Which of the following is most important in classifying two groups of bears into the same genus? A. similar diets B. similar genes C. similar habitat D. similar

The Earth has a radius of 6,400 kilometers. A satellite orbits the Earth at a distance of 12,800 kilometers from the center of the Earth. If the weight of the s

Why did immigrants tend to group together in cities?

convert to vertex form. y=2x^2+14x-4

Okay so I have three tests tomorrow. Haven't even started studying for two of them (Literature and History) but I already know science. How do you all learn 40

Which of the following nutrient cycles has its largest reservoir in the atmosphere? A) Carbon cycle B) Nitrogen cycle C) Potassium cycle D) Phosphorus cycle E)

The areas of two circles are 36(pi) and 64(pi). What is hte ratio of the diameters? of the circumferences?

13/20-3/10 estimate: closer to 1 or 0?

which number is 100 less than 38 tens

In Latin America, what did land reform accomplish?