notes covering the atomic structure, ions, isotopes, and more
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | subatomic particles (protons, neutrons, electrons)
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| show | 1 amu
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| What is the relative mass of an electron? | show 🗑
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| What is the relative mass of a neutron? | show 🗑
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| What is the relative charge of a proton? | show 🗑
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| What is the relative charge of an electron? | show 🗑
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| What is the relative charge of a neutron? | show 🗑
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| show | the number of protons
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| show | in the electron cloud
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| Where can you find protons and neutrons? | show 🗑
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| show | the nucleus
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| What makes up the majoirty of an atom's volume? | show 🗑
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| show | valence electrons
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| show | when they gain or lose an electrom from its valence electrons
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| How does an atom become an anion (negatively charged)? | show 🗑
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| show | the oxygen gained 2 electrons
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| show | losing electrons
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| What happened: Na -> Na^(+) ? | show 🗑
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| show | ions composed of more than 1 element, chemically bonded together
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| show | PO4^(3-)
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| What are isotopes? | show 🗑
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| show | C-12 has 6 neutrons, but C-13 has 7 neutrons
(reference: Carbon's atomic number is 6 and its mass 12)
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| show | # of electrons=# of protons
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| show | # of electons= # of protons PLUS the charge
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| show | # of electons= # of protons MINUS the charge
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| Practice: Mg has 12 protons, a charge of 2+, and a mass of 24. How many electrons are present? | show 🗑
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| show | 13 electrons
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| Practice: C has 6 protons, a charge of 1-, and a mass of 12. How many electrons are present? | show 🗑
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| What is the difference between the mass number and the atomic mass? | show 🗑
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| Why is the mass number always a whole number, while the atomic mass is a number with decimals? | show 🗑
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| Bromine has 2 isotopes (Br-79 and Br-81); if the average atomic mass is 79.904, what conclusion could be made about the relative abundance of each isotope? | show 🗑
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
shreyr
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