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Definition
| A substance comprised of identical atoms that cannot be separated into simpler substances by chemical means |
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Definition
| The smallest component of an element having the chemical properties of the element |
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Definition
| The positively charged central region of an atom, composed of protons and neutrons and containing almost all of the mass of the atom |
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Definition
| An elementary particle having a positive charge that is a fundamental constituent of all atomic nuclei |
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Definition
| An elementary particle having no charge, found in the nuclei of all atoms except those of hydrogen |
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Definition
| An elementary particle having a negative charge, found outside the nucleus of an atom |
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Definition
| Educated guess about what we think will happen |
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Definition
| Two or more elements bonded together whose composition is constant |
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Definition
| A standard of comparison in scientific experimentation |
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