Question
Which statement best explains why hydrogen’s atomic number is equal to its mass?(1 point)
Responses
Hydrogen is in the first row and the first column of the periodic table.
Hydrogen is in the first row and the first column of the periodic table.
Hydrogen only has one electron
Hydrogen only has one electron
Hydrogen does not have any neutrons.
Hydrogen does not have any neutrons.
Hydrogen is stable, with two electrons in its outer shell.
Responses
Hydrogen is in the first row and the first column of the periodic table.
Hydrogen is in the first row and the first column of the periodic table.
Hydrogen only has one electron
Hydrogen only has one electron
Hydrogen does not have any neutrons.
Hydrogen does not have any neutrons.
Hydrogen is stable, with two electrons in its outer shell.
Answers
GPT-4o mini
The statement that best explains why hydrogen’s atomic number is equal to its mass is:
**Hydrogen does not have any neutrons.**
This is because the atomic number of hydrogen is 1, indicating it has one proton, and its most common isotope also has no neutrons, giving it an atomic mass of approximately 1 (specifically about 1.008, but rounded to 1 for the simplest isotope, protium). The other statements do not accurately explain the relationship between atomic number and mass for hydrogen.
**Hydrogen does not have any neutrons.**
This is because the atomic number of hydrogen is 1, indicating it has one proton, and its most common isotope also has no neutrons, giving it an atomic mass of approximately 1 (specifically about 1.008, but rounded to 1 for the simplest isotope, protium). The other statements do not accurately explain the relationship between atomic number and mass for hydrogen.