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16 Cards in this Set
- Front
- Back
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What is inside the nucleus? |
Neutrons and Electrons |
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What charge do Protons, Electrons and Neutrons have? (in that order) hint: PEN |
+1, -1, 0 |
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What mass do Protons, Electrons and Neutrons have? (in that order) Hint: PEN |
1, 0, 1 |
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What is the name of the larger number on a element? |
Mass number |
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What is the name of the smaller number of a element? |
Atomic number |
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What is an ion? |
a charged atom |
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What is an isotope? |
different number of neutrons but same number of electrons |
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Who developed the plum pudding model? |
j.j.thomson |
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What is an element? |
a substance made up of only one type of atom |
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What is a compound? |
A substance made by the chemical bonding of two or more elements in fixed proportions |
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What are group 7 elements called and what do they exist as? |
Halogens and they exist as diatomic molecules. |
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What are the halogens? |
Reactive non-metals |
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What are group 0 elements called and what is their reactivity? |
Noble Gases and they are non-reactive |
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What boiling and melting points do noble gases have? |
low boiling and melting points |
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What are Group 1 elements called? |
Alkaline Metals |
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What reactivity do Alkaline metals have? |
Very reactive |
