Term
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Definition
| smallest particle of an element that retains the properties of an element |
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Term
| Compare and Contrast Daltons and Democritus Ideas |
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Definition
Democratus- Matter is composed of empty spacce Dalton- All matter is composed of extreamly small particles called atoms. |
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Term
| What was the expiriment of William Crooks? |
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Definition
| He used a cathode ray, and helped the discovery of electrons. |
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Term
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Definition
| Negatively charged particles that are forms of matter |
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Term
| What did Rutherford discover and how did he do it? |
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Definition
| He discovered a positively charged nucleus, and he did an expiriment where a light goes through a gold foil. |
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Term
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Definition
| It is a subatomic particle carrying a charge equal to but opposite that of an electron, that has a positive charge. |
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Term
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Definition
| It has a mass equal to the number of protons, but carries no electrical charge |
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Term
| What is an atoms atomic number? |
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Definition
| The number of protons in an atoms. |
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Term
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Definition
| Atoms with the same number of protons but different numbers of neutrons. |
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Term
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Definition
| The sum of the number of protons and neutrons in the neucleus. |
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Term
| What is an atomic mass unit? |
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Definition
Defined as 1/12 the mass of 12 carbon atom |
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Term
| What is a nuclear reaction? |
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Definition
| Reation which involves an atoms nucleus. |
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Term
| What is electromagnetic radiation? |
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Definition
| form of energy that exhibits wavelike behaivor as it travels through space |
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Term
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Definition
What is the shortest distance between equivilent points on a continuous wave. |
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Term
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Definition
| The number of waves that pass a given point per second. |
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Term
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Definition
| It is the wave's height from the originto a trough |
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Term
| What is the electromagnetic spectrum? |
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Definition
| encompases all forms of electromagnetric radiation. The colors red, orange, yellow, green, blue, inigo, and violet. |
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Term
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Definition
| It is the minimum amount of energy that can be gained or lost by an atom. |
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Term
| What is the atomic emision spectrum? |
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Definition
| It is the set of frequencies of the electromagnetic waves emitted by atoms of an element. |
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