10 Questions
Which of the following statements about atoms is true?
Atoms are the smallest unit of matter
What is an element?
A substance composed of only one type of atoms
How many elements are found in nature?
91
How many elements are synthetically made by scientists?
20
Do all atoms exist as elements?
No, some atoms do not exist
Which theory proposed that all matter is made up of atoms?
Dalton’s Atomic Theory
What is the smallest identifiable unit of an element?
Atom
Which subatomic particle has a positive charge?
Proton
What is the average mass of an element's atoms called?
Atomic Mass
What is the number of protons in an atom called?
Atomic Number
Test your knowledge of atoms and elements with this quiz covering topics such as the fundamental building blocks of matter, early ideas on atoms, Dalton's atomic theory, the discovery of electrons, the nuclear atom, and the properties of protons, neutrons, and electrons. Learn about atomic numbers and the history of elements in this comprehensive quiz.
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