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16 Cards in this Set
- Front
- Back
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Proton? |
Positively charged subatomic particle found in the nucleus |
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Neutron? |
Subatomic particle with a neutral charge. Found in the nucleus |
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Electron? |
Negatively charged subatomic particle that orbits the nucleus. Weighs 1/1840 |
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Describe an electrically neutral atom. |
- the number of positively charged subatomic particles equals the number of negatively charged subatomic particles - the number of protons equals the number of electrons |
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What is the difference between a proton and a neutron? |
The difference between a proton and a neutron is that a proton is positively charged while a neutron is neutral and has no charge. They are both the same weight and are both found in the nucleus. |
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What is the difference between a proton and an electron? |
The difference between a proton and an electron is that a proton is positively charged while and electron is negatively charged. A electron is 1/1840 of the weight of a proton and lastly, the electrons orbit the nucleus while a proton is in the nucleus. |
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What is an atomic number? |
The amount of protons in an atom. |
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What is an atomic mass? |
The sum of the neutrons and protons. |
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describe the structure of an atom? |
A densely packed, positively charged nucleus orbited by widely spaced negatively charged particles |
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Formula for sodium chloride? |
NaCl- |
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Formula for Silver bromide? |
AgBr- |
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Lithium nitride |
LiNO3 |
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A substance with a very high concentration of hydrogen ions (H+) is... |
an acid with very low pH |
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Describe the properties of a base. |
- Slimy - Bitter - Caustic - Neutralised by acids |
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Describe the properties of an acid. |
- Sour - Corrosive - Reactive with metals |
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Explain how acids and bases differ from each other in their properties. |
Acids and bases differ because bases have a bitter taste, caustic and have a slimy feel while, acids have a sour taste, are reactive with metals and are corrosive. They both neutralise each other. |
