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Definition
| Max Planck proposed that energy is radiated continuously in little packets called _____. |
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| The _____ refers to the total number of nucleons in an atom. |
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Definition
| A(n) _____ is an essentially massless, neutral lepton. |
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Term
| law of definite proportions |
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Definition
The _____ states that specific substances always contain elements in the
same ratio by mass. |
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Term
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Definition
| Another name for a helium nucleus is a(n). |
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Term
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Definition
A(n) _____ is any of a class of light, elementary subatomic particles. |
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Term
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Definition
| Frequency is measured in a unit called a(n) _____, which is equal to one cycle per second. |
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Definition
| A stream of electrons traveling toward the anode is a(n) _____. |
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Term
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Definition
| The methods of studying substances that are exposed to some sort of continuous exciting energy are referred to as _____. |
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Term
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Definition
| A(n) _____ is a hadron composed of a quark and an antiquark. |
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Term
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Definition
| For every particle, a mirror-image particle, called a(n) _____, is believed to exist. |
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Term
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Definition
| A(n) _____ is an atom that has the same number of protons as another atom, but a different number of neutrons. |
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Term
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Definition
| The _____ of a substance is the unique set of wavelengths absorbed or emitted by that substance. |
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Term
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Definition
| The phenomenon of the spontaneous production of rays by unstable atomic nuclei is called _____. |
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Term
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Definition
| When masses and relative amounts of isotopes have been found, the average _____ can be calculated. |
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Term
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Definition
| In a cathode-ray tube, the positive terminal is called the _____. |
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Term
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Definition
| In a cathode-ray tube, the negative terminal is called the _____. |
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