Question

an atom has an atomic number of 17, a mass of 37 amu, and a charge of -1. How many protons does this atom have? How many neutrons does this atom have? How many electrons does this atom have?

Answer 1

The atom has 17 protons, 20 neutrons, and 17 electrons. 

Answer 2

In conclusion, we have:

17 protons

18 electrons

20 neutrons

Step-by-step explanation:

Hello!

Let's solve this!

The atomic number indicates the number of protons that is equal to the number of electrons.

In this case, the number of protons is equal to 17.

The number of electrons is equal to 17.

To calculate the number of neutrons, we subtract the mass:

37-17 = 20.

Since the mass is equal to the number of neutrons plus that of protons.

In this case, the number of neutrons is 20.

As it has a charge -1, we add one more electron.

In conclusion, we have:

17 protons

18 electrons

20 neutrons