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Final exam (What are isotopes? (Element of the same atom with different…
Final exam
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What is chemistry?
Study of composition, structure, properties, and reaction of matter
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What are all the parts of a atom? The subatomic particles?The charges
Nucleus, Protons(+), Neutrons (-)
Electron cloud (neutral)
What is a scientific theory? What is a scientific law?
Theory- Explanation of a phenomenon, evidence to support it but can have multiple explanations
Law- It is what it is no variations of explanations
What is the difference between the solid liquid and gas?
solid- has a definite shape and a definite volume
liquid- has no definite shape and has a definite volume
gas- has no definite shape and no definite volume.
what is matter- substance that has mass and takes up space
intensive mass- property that does not depend on the amount of substance available
extensive- property that does depend on the amount of the substance
homogeneous- Uniform throughout substance (salt water) heterogeneous- Not the same throught out(tossed salad)
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what are the three temperature scales - kelvin Fahrenheit,
There are 7 principle energy levels, N1, N2,N3,N4,N5,N6, N7
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