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Integrated Science · Grade 9
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Inside the Atom: Protons, Neutrons and Electrons — Key Terms
Match each term to its definition.
Atom
— match —
The smallest particle of an element that still keeps the properties of that element.
The small, dense central part of an atom containing protons and neutrons.
A positively charged sub-atomic particle found in the nucleus.
An uncharged (neutral) sub-atomic particle found in the nucleus.
A negatively charged sub-atomic particle that moves in shells around the nucleus.
Nucleus
— match —
The smallest particle of an element that still keeps the properties of that element.
The small, dense central part of an atom containing protons and neutrons.
A positively charged sub-atomic particle found in the nucleus.
An uncharged (neutral) sub-atomic particle found in the nucleus.
A negatively charged sub-atomic particle that moves in shells around the nucleus.
Proton
— match —
The smallest particle of an element that still keeps the properties of that element.
The small, dense central part of an atom containing protons and neutrons.
A positively charged sub-atomic particle found in the nucleus.
An uncharged (neutral) sub-atomic particle found in the nucleus.
A negatively charged sub-atomic particle that moves in shells around the nucleus.
Neutron
— match —
The smallest particle of an element that still keeps the properties of that element.
The small, dense central part of an atom containing protons and neutrons.
A positively charged sub-atomic particle found in the nucleus.
An uncharged (neutral) sub-atomic particle found in the nucleus.
A negatively charged sub-atomic particle that moves in shells around the nucleus.
Electron
— match —
The smallest particle of an element that still keeps the properties of that element.
The small, dense central part of an atom containing protons and neutrons.
A positively charged sub-atomic particle found in the nucleus.
An uncharged (neutral) sub-atomic particle found in the nucleus.
A negatively charged sub-atomic particle that moves in shells around the nucleus.
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