With an EM wave, the higher the frequency is, the higher the energy but also the lower the wavelength. If a wave has a low frequency, it will have a high wavelength but also low energy. An example is a radio wave.
A high frequency, high energy (but low wavelength) wave like gamma or UV are also ionising which means they have enough energy to knock electrons off atoms.
0.052301= 6 sig. figure
400 cm. = 3 significant figures
50.0. =. 3. Significant figure
4500.01=. 6 significant figure
So Helium walks into a bar and orders a beer...
The bartender says, "Sorry we don't serve noble gases here."
Helium doesn't react.
<span>3. relate to properties of elements and how they may react.
Periodic trends are specific patterns that are present in the periodic table that include size, electronic properties, melting point, electronegativity and metallic character. The trends exist due to the similar atomic structure of the elements within each group family.</span>
