Question

iron, an element with the chemical symbol fe, is an important element. it is used to make steel and is part of the substance that transports oxygen throughout the human body. which statement about fe is supported by the modern atomic theory but not john daltons theory? the element iron is composed of small particles called atoms. the electrons of iron have probable locations in a region of space around the nucleus. iron atoms combine with other atoms in whole - number ratios to form compounds. chemical reactions that involve iron do not create new atoms of iron.

Explanation:

1. Dalton's atomic theory proposed that atoms are indivisible solid - like spheres. He didn't have the concept of electron probability regions.
2. Modern atomic theory, especially the quantum - mechanical model, states that electrons have probable locations in orbitals around the nucleus.
3. The idea that iron is composed of atoms was in Dalton's theory.
4. The combination of atoms in whole - number ratios to form compounds was part of Dalton's theory.
5. The law of conservation of atoms in chemical reactions was also in Dalton's theory.

Answer:

The electrons of iron have probable locations in a region of space around the nucleus.