click below
click below
Normal Size Small Size show me how
Unit 2: the atom
the atom and periodic table.
Term | Definition |
---|---|
Atomic radius | The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons. |
Chemical family | Chemical Family means a group of elements in the Periodic Table or, more commonly, compounds that share certain physical and chemical characteristics and have a common name. |
EM spectrum | The electromagnetic spectrum is the range of frequencies of electromagnetic radiation and their respective wavelengths and photon energies. |
Electronegativity | Electronegativity, symbolized as χ, is the tendency for an atom of a given chemical element to attract shared electrons when forming a chemical bond. |
Frequency | Frequency is defined as the number of times an event occurs per unit of time. |
Ionic radius | The ionic radius is the distance between the nucleus and the electron in the outermost shell of an ion. |
Ionization Energy | Ionization energy or ionisation energy is the minimum amount of energy required to remove the most loosely bound electron of an isolated neutral gaseous atom or molecule. |
Isotopes | |
Planck's constant | |
Valence | |
Wavelengh |