Question

1. check the box if the statement describes the atom model.

proposed by bohr
proposed by dalton
electrons only traveling in discrete orbits at specific distances from the nucleus
proposed by rutherford
negative electrons floating in a \soup\ of positively charged material
based off of discoveries by heisenberg and schrödinger
proposed by j. j. thomson
the atom that is not further divided into subatomic particles
a positively charged core being surrounded by mostly empty space and negatively charged electrons orbiting the core

Explanation:

To solve this, we analyze each atomic model:

1. First Model (Plum - Pudding, Thomson’s):

• “negative electrons floating in a ‘soup’ of positively charged material”: Thomson proposed the plum - pudding model with electrons in a positive “soup”.
• “proposed by J. J. Thomson”: Matches Thomson’s model.

2. Second Model (Bohr’s):

• “electrons only traveling in discrete orbits at specific distances from the nucleus”: Bohr’s model has electrons in fixed orbits.
• “proposed by Bohr”: Matches Bohr’s model.

3. Third Model (Dalton’s):

• “the atom that is not further divided into subatomic particles”: Dalton thought atoms were indivisible.
• “proposed by Dalton”: Matches Dalton’s model.

4. Fourth Model (Rutherford’s):

• “a positively charged core being surrounded by mostly empty space and negatively charged electrons orbiting the core”: Rutherford’s model has a nucleus (positive core) with electrons in empty space around it.
• “proposed by Rutherford”: Matches Rutherford’s model.

5. Fifth Model (Quantum Mechanical, Heisenberg/Schrödinger):

• “based off of discoveries by Heisenberg and Schrödinger”: The quantum mechanical model is based on their work.

Answer:

ing (checking boxes):

• For the first (plum - pudding) model: Check “negative electrons floating in a ‘soup’ of positively charged material” and “proposed by J. J. Thomson”.
• For the second (Bohr) model: Check “electrons only traveling in discrete orbits at specific distances from the nucleus” and “proposed by Bohr”.
• For the third (Dalton) model: Check “the atom that is not further divided into subatomic particles” and “proposed by Dalton”.
• For the fourth (Rutherford) model: Check “a positively charged core being surrounded by mostly empty space and negatively charged electrons orbiting the core” and “proposed by Rutherford”.
• For the fifth (quantum mechanical) model: Check “based off of discoveries by Heisenberg and Schrödinger”.

(Note: The exact box - checking depends on the table layout, but the above are the correct associations for each model’s description and proposer.)