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Science 8th Periodic
Science 8th Periodic Table
| Question | Answer |
|---|---|
| atom | smallest particle of an element made up of protons |
| proton | a particle with a positive charge that is found in the nucleus of an atom |
| neutron | a particle with no charge that is found in the nucleus of an atom |
| electron | a particle with a negative charge that is found outside the nucleus of an atom |
| valence electron | an electron in the outer shell of an atom which can combine with other atoms to form molecules |
| shell | the path an electron takes as it circles the nucleus of an atom |
| electron cloud | a region around the nucleus of an atom where electrons are likely to be found |
| ion | an atom that has a positive or negative charge |
| isotope | one of two or more atoms with the same atomic number (protons) but with different numbers of neutrons |
| ionic bond | a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains to electron to form a negative ion |
| covalent bond | a chemical bond that involves sharing a pair of electrons between atoms in a molecule |
| atomic mass | the average mass of all the isotopes of an element |
| atomic number | the number of protons in the nucleus of an atom |
| mass number | the total number of protons and neutrons in the nucleus of an atom |
| element | matter that consists entirely of one type of atom |
| compound | matter whose smallest unit is a molecule made up of more than one kind of atom |
Created by:
cpl1208
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