Question

Match the scientist to his contribution to the atomic theory.

Term Definition
Rutherford A) Nucleus
Bohr B) Electron energy levels
Schrodinger C) Electron cloud and orbitals

Answer 1

Rutherford → Nucleus

Bohr → Electron energy levels

Schrodinger → Electron cloud and orbitals

Explanation:

Rutherford in his model of an atom follows as:

• Atom has positive charge which is concentrated in the center of it which he called nucleus.
• Whole mass of an atom is concentrated in the nucleus of an atom.

Bohr in his structure of an atom follows as:

• He explained that electrons revolve around the nucleus in energy levels called shells or orbits.
• These energy levels have different values as move away from nucleus.

Schrodinger proposed the mechanic model of atom follows:

• He defined the set of quantum number to locate of electrons inside an atom.
• And electrons around the nucleus were said to be electron cloud in a three dimensional space.

Answer 2

Step-by-step explanation:

Rutherford → Nucleus

Rutherford in his model of an atom proposed that in an atom positive charge is concentrated in the center of an atom with he named nucleus and along with that also told that whole of an atom is also concentrated in the nucleus of an atom.

Bohr → Electron energy levels

Bohr in his structure of atom explained that electrons revolve around the nucleus in fixed orbit or shell or energy levels.These energy levels are stable and are stationary along with different energy value.

Schrodinger → Electron cloud and orbitals

Schrodinger proposed the mechanic model of atom in which he defined the location of electrons inside an atom by electron cloud in 3-d space.To define their location he introduced concept of quantum number.