6 Questions
What is the main difference between matter and energy?
Matter occupies space and has mass, while energy does not occupy space and has no mass
Which of the following is a homogeneous mixture according to the classification of matter?
Salt solution
What are the main subatomic particles that make up an atom?
Protons, electrons, and neutrons
According to the nuclear model put forward by Ernest Rutherford, where is the nucleus located within an atom?
At the center of the atom
What is the charge of a neutron?
No charge
Which statement best describes the electron within an atom?
A negatively charged particle that orbits around the nucleus
Study Notes
- Matter and energy are the two main categories of things in our environment.
- Matter is that which occupies space and has mass.
- Classification of matter: Pure substances (Elements, Compounds), Physical nature (Solid, Liquid, Gas), Chemical composition (Homogeneous mixtures, Heterogeneous mixtures).
- Atoms are the basic units of matter.
- Atoms consist of subatomic particles: Protons, Electrons, and Neutrons.
- Protons have a positive charge, electrons have a negative charge, and neutrons have no charge.
- Nuclear model introduced to explain organization of particles in matter.
- Nucleus, a small area at the center of an atom, contains most of an atom's mass.
- Size of a nucleus is even smaller than a chickpea.
Test your knowledge of the classification of matter based on physical nature and chemical composition. Explore the categories of pure substances, elements, compounds, mixtures, and their subtypes.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
