11 Questions
What are the three subatomic particles that make up atoms?
Electrons, protons, and neutrons
Which property defines each element?
Number of neutrons, protons, and electrons
How many known elements are there in the periodic table?
Over 100
How are hydrogen and helium different from each other?
They have different numbers of neutrons, protons, and electrons
According to the kinetic theory of matter, why does matter expand when it is hot?
Due to the constant movement of its particles
Which of the following substances cannot be reduced to a simpler form by chemical means?
Gold
What is the characteristic of an element that prevents it from being reduced to a simpler form by chemical means?
Atomic number
Which of the following statements accurately describes the nature of elements?
Elements retain their chemical properties even when subjected to extreme conditions.
What is a compound?
A chemical combination of two or more elements
Which of the following is an example of a compound?
Water
What distinguishes a compound from a mixture?
A compound is a chemical combination of elements, while a mixture is a physical blending of substances
Test your knowledge about the basic components of atoms and their properties. Learn about protons, neutrons, and electrons, and how they determine the characteristics of different elements.
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