16 Questions
What is the study of matter called?
Chemistry
According to molecular theory, what do molecules in a liquid do?
Change position to fit the shape of a container
What are the three types of particles in an atom according to atomic theory?
Neutrons, Protons, Electrons
What makes up the nucleus of an atom?
Protons and Neutrons
What is the primary component of an atom according to atomic theory?
Empty space
Why do people and animals need calcium according to the text?
For healthy bones and teeth
What is the main focus of chemistry?
The study of matter
According to molecular theory, what constantly moves within molecules?
Electrons
Why do molecules in a liquid change position?
To fit the shape of the container
What is the primary reason for molecules in a solid to vibrate back and forth?
To maintain a fixed position
Which part of an atom has the same number of protons as electrons?
Electrons
What is the function of the orbits in an atom?
Contain electrons
Why are elements different from each other?
Due to their atomic numbers
What is the primary purpose of calcium in our bodies?
To maintain healthy bones and teeth
What makes up the majority of an atom according to atomic theory?
Empty space within it
Why do molecules in a gas move faster than those in a liquid?
To maximize interaction with the container
Test your knowledge on the foundational concepts of molecular theory, matter composition, and molecular movement. Explore the key principles of molecular theory and its significance in the study of matter.
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