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Week3 Vocab- AdvChem
Atoms basics
Question | Answer |
---|---|
Atom | The smallest unit of matter; Consists of a dense, positively charged nucleus surrounded by a cloud of negatively charged electrons. |
Proton | A subatomic particle located in the nucleus with a positive charge. |
Neutron | A subatomic particle located in the nucleus with no charge (it is neutral). |
Electron | A subatomic particle located outside of the nucleus with a negative charge. This particle does not have a significant mass. |
Subatomic particle | The components that make up atoms. |
Predict | To say or estimate that something will happen in the future. |
Classify | To arrange or group into categories according to shared characteristics. |
Atomic number | The number of protons in the nucleus of an atom; identifies each element. |
Mass number | The number of protons and neutrons in the nucleus of an atom |
Average atomic mass | The weighted average of all the isotopes of an element based on the abundance of each isotope found on the earth. |
Isotope | Atoms containing the same number of protons but different mass numbers. |