Gallium has an atomic number of 31 and a mass number of 70. Which table shows the number of protons, neutrons, and electrons in a gallium ion with a +3 charge?(1 point)ResponsesParticle Numberprotons 31neutrons 39electrons 28Particle Number protons 31 neutrons 39 electrons 28Particle Numberprotons 31neutrons 39electrons 31Particle Number protons 31 neutrons 39 electrons 31Particle Numberprotons 39neutrons 31electrons 39Particle Number protons 39 neutrons 31 electrons 39Particle Numberprotons 39neutrons 31electrons 36

Question

Gallium has an atomic number of 31 and a mass number of 70. Which table shows the number of protons, neutrons, and electrons in a gallium ion with a +3 charge?(1 point)ResponsesParticle Numberprotons 31neutrons 39electrons 28Particle Number protons 31 neutrons 39 electrons 28Particle Numberprotons 31neutrons 39electrons 31Particle Number protons 31 neutrons 39 electrons 31Particle Numberprotons 39neutrons 31electrons 39Particle Number protons 39 neutrons 31 electrons 39Particle Numberprotons 39neutrons 31electrons 36

Answer 1

The correct table is:

Particle Number
protons 31
neutrons 39
electrons 28

The atomic number of an atom is equal to the number of protons. The mass number, which is the total number of protons and neutrons, minus the number of protons gives the number of neutrons. For a charged ion, the number of electrons is not equal to the number of protons. In this case, Gallium (Ga) has a charge of +3, meaning it has lost 3 electrons, hence it has 28 electrons.

Answer 2

The correct answer is: Particle Number protons 31 neutrons 39 electrons 28

Answer 3

To determine the number of protons, neutrons, and electrons in a gallium ion with a +3 charge, you can use the given information that gallium has an atomic number of 31 and a mass number of 70.

Step 1: Find the number of protons
The atomic number of gallium (Z) is equal to the number of protons in an atom. Therefore, the number of protons in gallium is 31.

Step 2: Find the number of neutrons
The mass number of gallium (A) is equal to the sum of protons and neutrons in an atom. Since the mass number is 70 and the number of protons is 31, subtracting the number of protons from the mass number gives us the number of neutrons. Neutrons = mass number (A) - protons (Z) = 70 - 31 = 39.

Step 3: Determine the number of electrons
In a neutral atom, the number of electrons is equal to the number of protons since positive charges (protons) and negative charges (electrons) balance each other. However, when an atom becomes an ion with a charge of +3, it loses three electrons.

So, the number of electrons in the gallium ion with a +3 charge is 31 - 3 = 28.

Therefore, of the given options, the correct answer is: Particle Number protons 31 neutrons 39 electrons 28.