Journey Through Atomic History

Journey Through Atomic History

10th Grade

10 Qs

quiz-placeholder

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Journey Through Atomic History

Journey Through Atomic History

Assessment

Quiz

Chemistry

10th Grade

Medium

Created by

Manuel Guillen

Used 3+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who is credited with the discovery of the electron?

Ernest Rutherford

Niels Bohr

J.J. Thomson

Albert Einstein

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the main conclusion from Rutherford's gold foil experiment?

Atoms are mostly empty space with a small, dense nucleus.

Electrons orbit the nucleus in fixed paths.

Atoms can be divided into smaller particles.

Energy levels of electrons are quantized.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did Bohr's model of the atom suggest about electrons?

Electrons move in random patterns around the nucleus.

Electrons have properties of both particles and waves.

Electrons travel in fixed orbits around the nucleus.

The position of electrons cannot be determined precisely.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which experiment led to the downfall of the plum pudding model of the atom?

The cathode ray tube experiment

The gold foil experiment

The oil drop experiment

The double-slit experiment

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of the Heisenberg Uncertainty Principle in the quantum mechanical model?

It proves that electrons have a dual wave-particle nature.

It states that the exact position and momentum of an electron cannot be simultaneously known.

It defines the fixed orbits of electrons.

It describes the nucleus as being composed of protons and neutrons.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a postulate of Dalton's atomic theory, which is considered an early part of modern atomic theory?

Atoms of different elements can combine in simple whole-number ratios to form compounds.

Atoms are indivisible and indestructible.

Atoms of the same element are identical in size, mass, and other properties.

The nucleus of an atom is surrounded by a cloud of electrons.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did the quantum mechanical model introduce that was absent in Bohr's model?

The concept of energy levels

The idea of a nucleus

The electron cloud and probability distributions

The fixed orbits of electrons

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