A model of an atom shows eight electrons in rings that represent different energy levels. How many electrons are in each energy level?(1 point)

Question

Responses

two in the first energy level, six in the second energy level
two in the first energy level, six in the second energy level

four in the first energy level, four in the second energy level
four in the first energy level, four in the second energy level

eight in the first energy level, zero in the second energy level
eight in the first energy level, zero in the second energy level

zero in the first energy level, eight in the second energy level

A student wants to draw a model of an atom. Which statement describes how to find the number of neutrons to include in the model?(1 point)
Responses

Subtract the atomic number from the mass number.
Subtract the atomic number from the mass number.

Add the number of electrons to the number of protons.
Add the number of electrons to the number of protons.

Add the atomic number and the mass number.
Add the atomic number and the mass number.

Subtract the number of electrons from the number of protons.

Which of the following does the atomic number of an atom represent?(1 point)
Responses

the number of particles in the nucleus of the atom
the number of particles in the nucleus of the atom

the number of neutrons in the atom
the number of neutrons in the atom

the number of particles outside the nucleus of the atom
the number of particles outside the nucleus of the atom

the number of protons in the atom

Answer 1

1. For the question about how many electrons are in each energy level:

   • Correct response: two in the first energy level, six in the second energy level.
     • This follows the general rule that the first energy level can hold up to 2 electrons, and the second energy level can hold up to 8 electrons, but in your case, you're stating a configuration of 8 total electrons.

2. For the question about how to find the number of neutrons to include in the model:

   • Correct response: Subtract the atomic number from the mass number.
     • This gives you the number of neutrons in an atom, as neutrons and protons contribute to the mass number, while the atomic number represents the number of protons only.

3. For the question about what the atomic number of an atom represents:

   • Correct response: the number of protons in the atom.
     • The atomic number specifically corresponds to the number of protons, which also indicates the element's identity.