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Protons and neutrons make up the _________ of an atom.
nucleus
outside the atom
compounds
elements
compound
Protons have a positive charge and Electrons have a negative charge
physical
mixture
Pure substances made from only one type of atom are ________.
nucleus
outside the atom
compounds
elements
compound
Protons have a positive charge and Electrons have a negative charge
physical
mixture
Which is correct?
nucleus
outside the atom
compounds
elements
compound
Protons have a positive charge and Electrons have a negative charge
physical
mixture
A solution is a _________ in which one substance dissolves in another.
nucleus
outside the atom
compounds
elements
compound
Protons have a positive charge and Electrons have a negative charge
physical
mixture
When two or more elements combine to form a new substance, it's called a ______.
nucleus
outside the atom
compounds
elements
compound
Protons have a positive charge and Electrons have a negative charge
physical
mixture
Salt, water, carbon dioxide, and sugar are ________.
nucleus
outside the atom
compounds
elements
compound
Protons have a positive charge and Electrons have a negative charge
physical
mixture
Where do you find the electrons?
nucleus
outside the atom
compounds
elements
compound
Protons have a positive charge and Electrons have a negative charge
physical
mixture
Because the substances in a mixture retain their original properties, they can be separated by __ means.
nucleus
outside the atom
compounds
elements
compound
Protons have a positive charge and Electrons have a negative charge
physical
mixture
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