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 statement is NOT true?A. If two coplanar lines do not intersect, then the lines are parallel.B. Two lines lie in one plane and do not intersect if and on

what city is located 60 north 25 east

Write this statement as a conditional in if-then form: All triangles have three sides. A) If a figure is a triangle, then all triangles have three sides.B) If a

A transformer has a primary coil with 600 turns and a secondary coil with 300 turns. If the output voltage is 320 volts, what is the input voltage?A. 8 volts

Write this statement as a conditional in if-then form: All triangles have three sides. A) If a figure is a triangle, then all triangles have three sides.B) If a

all fractions between 0 and 1/4

Write this statement as a conditional in if-then form: All triangles have three sides. A) If a figure is a triangle, then all triangles have three sides.B) If a

2(n-3)=4n+1 this sucks not knowing the answer

1. Why are there active volcanoes along the Pacific coast in Washington and Oregon but not along the East coast of the United States?

In Romeo and Juliet act 2, which character serves as a messenger