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Questions and Answers
True or false: The atom is the smallest particle to which an element can be reduced while still keeping the properties of that element?
True or false: The atom is the smallest particle to which an element can be reduced while still keeping the properties of that element?
True (A)
True or false: The electron is the fundamental positive charge of electricity and revolves around the nucleus of the atom in concentric orbits?
True or false: The electron is the fundamental positive charge of electricity and revolves around the nucleus of the atom in concentric orbits?
False (B)
True or false: An atom consists of a positively charged nucleus surrounded by negatively charged electrons?
True or false: An atom consists of a positively charged nucleus surrounded by negatively charged electrons?
True (A)
True or false: The neutron is slightly heavier than the proton and is electrically neutral?
True or false: The neutron is slightly heavier than the proton and is electrically neutral?
True or false: The nucleus of an atom is composed of protons and electrons?
True or false: The nucleus of an atom is composed of protons and electrons?
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Study Notes
Atomic Structure
- Elements are the basic building blocks of all matter.
- An atom is the smallest particle of an element that still retains the properties of that element.
- An atom consists of a positively charged nucleus surrounded by negatively charged electrons, making the atom electrically neutral as a whole.
Nucleus Composition
- The nucleus is composed of two types of subatomic particles: protons and neutrons.
- Protons carry a single unit positive charge, equal in magnitude to the electron charge.
- Neutrons are slightly heavier than protons and are electrically neutral.
Electron Characteristics
- Electrons are the fundamental negative charge (-) of electricity.
- Electrons revolve around the nucleus, or center, of the atom in concentric orbits, or shells.
Atom Composition
- The combination of protons and neutrons in the nucleus varies depending on the element involved.
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