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Atomic structure
A set of keywords from chapter 29+30
Term | Definition |
---|---|
Atom | The smallest particle of an element Which still retains the properties of the element. |
Proton | An sub-atomic particle with a positive charge. |
Neutron | An sub-atomic particle of the atom with no charge. |
Atomic mass unit | |
Sub-atomic particles | Particles inside the atom |
Noble gas | Elements in group 8 |
Alkali metals | Elements in group 1 |
Alkali Earth metals | Elements in group 2 |
Halogens | Elements in group 7 |
Niels Bohr | Proposed electrons orbit the nucleus |
Dimitri Mendeleev | Created the periodic table |
Group | A group of elements with the same Chemical properties. |