does elements with low energy have high frequency?

E = h*frequency.

High frequency means high energy. I don't know how that fits into a discussion of elements unless you are talking about their emission spectrum.

yes, it's all about emission spectrum..

To determine whether elements with low energy have high frequency, we need to understand the relationship between energy and frequency.

In the context of elements, energy refers to the energy levels or shells of electrons within an atom. These energy levels are quantized, meaning they exist at specific and discrete values. When an electron transitions from one energy level to another, it either gains or loses energy.

On the other hand, frequency refers to the number of waves passing a given point in a given time. In the case of elements, frequency is related to the energy transitions that electrons undergo within an atom.

According to the Bohr model of the atom, electrons can transition between energy levels by absorbing or emitting a specific amount of energy. This energy is often associated with the emission or absorption of photons, which are particles of light. The energy of a photon is directly proportional to its frequency.

So, when an electron undergoes a transition from a higher energy level to a lower one, it releases a photon with a specific frequency. This is known as emission. Conversely, if an electron absorbs a photon with a specific frequency, it can jump to a higher energy level. This is known as absorption.

Therefore, elements with low energy levels tend to have lower frequency emissions or absorptions. In other words, lower energy levels correspond to lower frequency transitions. Higher energy levels, on the other hand, correspond to higher frequency transitions.

However, it's important to note that this relationship applies to specific transitions within an atom's electron configuration and does not necessarily reflect the overall frequency range of an element as a whole.