P601 - History of the Atom

Which atomic model proposed that electrons are found within specific regions called orbitals around the nucleus?

• Quantum Mechanical Model
• Planetary Model
• Nuclear Model
• Plum Pudding Model

Which atomic model is based on the idea that electrons are described by probability distributions called orbitals?

• Quantum Mechanical Model
• Planetary Model
• Nuclear Model
• Plum Pudding Model

Which atomic model proposed that electrons orbit the nucleus in specific energy levels or orbits?

• Nuclear Model
• Plum Pudding Model
• Quantum Mechanical Model
• Planetary Model

Who first proposed that matter is made of small particles?

• JJ Thomson
• John Dalton
• Werner Heisenberg
• Leucippus

What was the main conclusion drawn from Rutherford's Gold Foil Experiment?

• Atoms are indivisible, indestructible particles
• Atoms have a tiny, dense, positively charged nucleus at their center
• Electrons orbit the nucleus in specific energy levels
• Electrons are described by probability distributions called orbitals

Which atomic model proposed that atoms have a tiny, dense, positively charged nucleus at their center?

• Planetary Model
• Quantum Mechanical Model
• Nuclear Model
• Plum Pudding Model

Which atomic model attempted to explain the behavior of electrons within an atom?

• Planetary Model
• Nuclear Model
• Plum Pudding Model
• Quantum Mechanical Model

What is the meaning of the word 'atomos' introduced by Democritus?

• Indivisible
• Compound
• Nucleus
• Energy level

Which atomic model proposed that atoms are indivisible and indestructible particles?

• Dalton's Atomic Model
• Plum Pudding Model
• Nuclear Model
• Planetary Model

Which atomic model proposed that atoms are made up of a positively charged sphere with negatively charged electrons embedded within it?

• Plum Pudding Model
• Quantum Mechanical Model
• Nuclear Model
• Planetary Model