Atoms Quiz

CORRECT ANSWERS: 0

This atoms quiz will test your knowledge about the smallest particles that make up matter. Check out our amazing Atoms Quiz.

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Question 1 of 10

Who first devised the idea of the atom?

Democritus
John Dalton
Werner Heisenberg

... The idea of the atom was first devised by the Greek philosopher Democritus.

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Question 2 of 10

What classification of substance cannot be broken down by chemical reactions?

compound
element
molecule

... An element is a substance that cannot be broken down by chemical reactions.

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Question 3 of 10

What is the smallest piece of a compound that keeps its chemical properties?

molecule
neutron
electron

... A molecule, made of two or more atoms, is the smallest piece of a compound that keeps its chemical properties.

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Question 4 of 10

What is the nucleus of an atom composed of?

protons and neutrons
neutrons and electrons
protons, neutrons and electrons

... The nucleus is made up of protons and neutrons.

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Question 5 of 10

Who discovered atomic weight?

John Dalton
Dimitri Mendeleev
Amadeo Avogadro

... The ability to weigh atoms came about by an observation from an Italian chemist named Amadeo Avogadro.

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Question 6 of 10

Who created the first periodic table?

John Dalton
Dimitri Mendeleev
Louis de Broglie

... Russian chemist Dimitri Mendeleev was the first to organize elements in terms of their properties by placing the elements and their newly discovered atomic masses on cards.

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Question 7 of 10

What branch of physics deals with the motion of particles by their wave properties at the atomic and subatomic levels?

atomic physics
quantum mechanics
particle physics

... Quantum mechanics is the branch of physics that deals with the motion of particles by their wave properties at the atomic and subatomic levels.

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Question 8 of 10

What kind of microscope is required in order to see an atom?

light microscope
scanning tunneling microscope
neither

... A scanning tunneling microscope (STM) was developed in 1981 to allow scientist to see an atom.

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Question 9 of 10

Which of the following is not a unit of atomic mass?

mole
amu
Dalton

... Atomic mass is measured in atomic mass units (amu) and Daltons.

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Question 10 of 10

What does Heisenberg's uncertainty principle concern?

atomic number
atomic weight
electron position

... Heisenberg's uncertainty principle concerns electron momentum and position.

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