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18 Cards in this Set
- Front
- Back
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Elements are composed of __________ , which is the smallest piece of the element and cannot be broken down any further. |
Atoms |
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Compounds are composed of __________ , which is the smallest piece of a compound that still retains the properties of the compound. |
Molecules |
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A __________ is the smallest piece of a compound that still retains the properties of the compound. |
Molecule |
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Molecules can be further broken down into _________. |
Atoms |
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True / False When molecules are broken down into atoms, they retain the properties of the compound. |
False. A molecule is the smallest smallest piece of a compound that still retains the properties of the compound. |
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An atom is composed of _______________ particles. |
Subatomic. |
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Subatomic particles include what three things? |
Protons, neutrons, electrons |
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A proton has a) a positive charge b) a negative charge c) a neutral charge |
a) a positive charge |
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An electron has a) a positive charge b) a negative charge c) a neutral charge |
b) a negative charge |
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A neutron has a) a positive charge b) a negative charge c) a neutral charge |
c) a neutral charge |
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True or false? The nucleus of an atom (the centre) contains one or more protons and a number of neutrons. |
True |
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True or false? The nucleus of an atom (the centre) contains one or more electrons and a number of protons. |
False It contains one or more protons and a number of neutrons. |
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True or false Electrons are found in the space around the nucleus. |
True |
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Does an atom have the same number of protons and electrons? |
Yes, so the electrical charge will always balance out |
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The difference between one element and another is in the number of protons in the in the __________ of the atom. |
nucleus |
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True or false The number of protons in the nucleus of an atom is the atomic number for that atom. |
True Eg, Hydrogen has 1 proton, Oxygen has 8 protons. |
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_________________ indicates the weight of an atom relative to the weight of one proton. |
Atomic weight |
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An atom that has gained or lost one or more electrons is called a) compound b) neutron c) ion d) nucleus |
c) ion |
