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Atoms/Elements
6th Physical Science
Question | Answer |
---|---|
The basic building blocks of matter, because they are the smallest particles that can have the same properties as the stuff they make up. | atoms |
The 3 subatomic particles that make up atoms. | protons, neutrons, electrons |
Subatomic particles that have a positive electric charge and make up the nucleus of an atom. | protons |
Subatomic particles that have no charge (neutral) and make up the nucleus of an atom. | neutrons |
Subatomic particles that that have a negative charge and are surrounding the outside of the nucleus. | electrons |
The name given to the area where are electrons gather around a atom's nucleus. | electron cloud |
A pure substance that is made up of only one type of atom. | element |
The number of protons in the nucleus of an atom. | atomic number |
Letter(s) abbreviation that represents an element. | chemical symbol |
A characteristic of a substance that can be observed and measured without changing the identify of the substance. | physical property |
Elements that have some properties of metals and some properties of nonmetals. | metalloids |
Elements that are solid, shiny, malleable, and are good conductors of heat & electricity. | metals |
Elements that are mostly gases. Some types of this element can be solid, dull, and brittle. Not great conductors of heat or electricity. | nonmetals |
The number of protons and neutrons that make up the nucleus of an atom. | mass number |