suelemap81 suelemap81

25-11-2018
Chemistry

contestada

If an element has 4 protons and 5 neutrons its mass number is

Respuesta :

s873956 s873956

25-11-2018

its atomic mass will equal up to 9

Answer Link

25-11-2018

Answer:

9

Explanation:

The mass number (A) is the sum of the number of protons (p) and the number of neutrons (n).

A = p + n

p = 4

n = 5 Calculate A

A = 4 + 5

A = 9

Answer Link

Otras preguntas

A massive tractor is rolling down a country road. In a perfectly inelastic collision, a small sports car runs into the machine from behind. (i) Which vehicle ex

I need help a water pollution expert gave a speech at a local gathering read this excerpt from the speech what is its purpose?

HELP!! Determine whether the pair of lines are parallel, perpendicular, or neither. 8x=3y+2 -16x+6y=2.

If a person walks 1/4 of a mile in 1/8 of an hour. Determine how many miles they are running per hour.

here is a question for you

Survival and development is impossible without the environment.Justify

Helppp, please!! :( will mark the brainiest!!! (if possible)

When does a magnet induce an electric current in a wire coil? O A. When the wire is connected to the coil O B. When the magnet is near the coil O C. When the ma

If f(x) = 10, find x.

The length of a rectangle is 3 more than 3 times its width. The perimeter of the rectangle is 174 inches. What is the length of the rectangle?