Electronic structures model how electrons are arranged ... so similar chemical properties. Sample exam questions - atomic structure and the periodic table - AQA Understanding how to approach ...

In 1913, Niels Bohr revised Rutherford's model by suggesting that the electrons ... However, there was still a difference between the atomic number of the atom and the atomic mass.

Atomic Absorption Spectrometers use particular wavelengths of light to evaluate the concentration of gas-phase atoms in a liquid or solid sample. After a solid sample is dissolved in a liquid or a ...