Question 1

Why is the Plum Pudding Model helpful for scientists?

Accepted Answer

It shows how atoms are mostly empty space.

Answer

It shows the nucleus is the most massive part of the atom.

Answer

It shows electrons have specific energy levels.

Answer

It shows how atoms are indivisible particles.

Question 2

What resembles the Plum Pudding Model of the atom?

Accepted Answer

A positively charged sphere with negatively charges scattered throughout.

Answer

A miniature solar system with planets orbiting a central nucleus.

Answer

A tiny, solid ball with negative charges stuck on the outside.

Answer

A complex mathematical equation describing electron behavior.

Question 3

What can be seen in the physical model of the Bohr model of the atom?

Accepted Answer

Presence of orbitals

Answer

A nucleus at the center

Answer

Nothing, just empty space

Answer

A cloud of electrons

Question 4

According to Dalton’s theory, atoms of the same element are:

Accepted Answer

Identical in properties

Answer

Different in size and mass

Answer

Always combined with other atoms

Answer

Made of subatomic particles

Question 5

Why is Dalton’s idea that atoms are indivisible no longer accepted?

Accepted Answer

Atoms are made up of subatomic particles

Answer

Atoms cannot form compounds

Answer

Atoms can disappear

Answer

Atoms have no mass

Question 6

Water is composed of two atoms of hydrogen and one atom of oxygen. Which of the following can be the particle model for water?

Accepted Answer

https://uploads.quizalize.com/f6bd3e60-955f-4f01-8178-3ed2081f7c2f/question/a62439e102d96569672cfb3c89bbb6ff1ef75033.jpeg

Answer

https://uploads.quizalize.com/f6bd3e60-955f-4f01-8178-3ed2081f7c2f/question/bce390cf01e43246300a077e32406d026b24ad1f.png

Answer

https://uploads.quizalize.com/f6bd3e60-955f-4f01-8178-3ed2081f7c2f/question/d474f143f19659bc8ff6d5169cf23a6414c713a1.png

Answer

https://uploads.quizalize.com/f6bd3e60-955f-4f01-8178-3ed2081f7c2f/question/45fc473d66b09ebe4fba80e1368d7c1bb44c6c8c.jpeg

Question 7

Which of the following is TRUE about Rutherford’s atomic model?

Accepted Answer

The atom is mostly empty space

Answer

Atoms cannot deflect alpha particles

Answer

Electrons are inside the nucleus

Answer

The positive charge is spread throughout the atom

Question 8

Which statement is TRUE about Bohr’s model?

Accepted Answer

Electrons move in fixed orbits around the nucleus

Answer

The nucleus has no charge

Answer

The model worked perfectly for all atoms

Answer

Electrons can have any energy valueC

Question 9

Which statement is TRUE about electron movement in the Quantum Model?

Accepted Answer

Electrons move in uncertain, cloud-like regions

Answer

Electrons remain stationary

Answer

Electrons only move in pairs

Answer

Electrons move in perfect circles

Question 10

Which of the following is NOT a feature of Bohr’s model?

Accepted Answer

Electrons occupying energies between levels

Answer

Stable electron orbits

Answer

Fixed electron energy levels

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