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Atoms/Isotopes/Ions
Question | Answer |
---|---|
What is the atomic theory? | All matter is made up of atoms |
What is the current atomic model? | Electron Cloud Model |
What is the charge of proton? | +1 |
What is the charge of a neutron? | 0 |
What is the charge of an electron? | -1 |
Where are protons and neutrons located? | In the nucleus |
Where are electrons located? | Outside of the nucleus, in the electron cloud |
What is the atomic number? | The number of protons in an atom |
What is the mass number? | protons + neutrons |
What is average atomic mass? | the average mass of all the isotopes of an element |
What is an isotope? | Atoms of the same element with different numbers of neutrons |
How do you find the number of neutrons? | Mass number - Atomic number |
When written in Nuclear Notation, what does the superscript show? | Mass number |
When written in Nuclear Notation, what does the subscript show? | Atomic Number |
In an atom, how do you find the number of electrons? | number of electrons = number of protons |
How do you find average atomic mass? | multiply the mass of each isotope by its abundance, then add each result together |
What is an ion? | An atom with a positive or a negative charge. |
What is a cation? | An ion with a positive charge |
What is an anion? | An ion with a negative charge |