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30 Cards in this Set
- Front
- Back
What charge do protons have? |
+1 |
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What's the relative mass of protons? |
1 |
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What is the atomic number |
Proton Number / Electron Number |
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Where are protons found, in an atom? |
In the nucleus |
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What charge do electrons have? |
-1 |
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What is the relative mass of an electron? |
0 |
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Where in an atom can you find the electrons? |
Arranged in energy level shells |
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What charge do neutrons have? |
0 |
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What is the relative mass of a neutron? |
1 |
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What is the atomic mass? |
The number of neutrons + The number of protons |
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Where in an atom can you find neutrons? |
In the nucleus |
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What is 99% of an atom made up of? |
Empty space |
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Define isotope |
An atom with a different number of neutrons but the same number of protons |
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Define ion |
An element with the same number of protons but a different number of electrons |
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Define cation |
A positive ion |
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Define anion |
A negative ion |
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Define Relative Isotopic Mass |
The mass of a single atom, which can only be one isotope (nuclide) at a time, and is not an abundance weighted average |
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Define Relative Atomic Mass |
The ratio of the average mass per atom of the naturally occuring form of an element to 1/12 the mass of Carbon-12 |
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What is the rule for ions? |
Gaining weight is a negative thing, losing weight is a positive thing |
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What does Ar mean? |
Atomic mass |
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What does Mr mean? |
Molecular mass |
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What charge do group 1 ions have? |
+1 |
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What charge do group 2 ions have? |
+2 |
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What charge do group 3 ions have? |
+3 |
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What charge do group 4 ions have? |
+4 / -4 |
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What charge do group 5 ions have? |
-3 |
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What charge do group 6 ions have? |
-2 |
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What charge do group 7 ions have? |
-1 |
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What charge do group 8 ions have? |
0 |
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What are the two rules for forming ionic equations? |
• Split any aqueous, ionic compounds into their constituent ions • Leave any covalent compounds alone |