Question

Check the statement(s) that is(are) true. Check All That Apply An excited atom can return to its ground state by absorbing electromagnetic radiation.An excited atom can return to its ground state by absorbing electromagnetic radiation. The energy of an atom is increased when electromagnetic radiation is emitted from it.The energy of an atom is increased when electromagnetic radiation is emitted from it. The energy of electromagnetic radiation increases as its frequency increases.The energy of electromagnetic radiation increases as its frequency increases. Niels Bohr quantized electromagnetic radiation.Niels Bohr quantized electromagnetic radiation. Red light is more energetic than blue light. Red light is more energetic than blue light. The frequency and wavelength of electromagnetic radiation are inversely proportional.The frequency and wavelength of electromagnetic radiation are inversely proportional.

Answer 1

An excited atom can return to its ground state by absorbing electromagnetic radiation, the energy of electromagnetic radiation increases as its frequency increases, and the frequency and wavelength of electromagnetic radiation are inversely proportional.

Step-by-step explanation:

When an atom is given energy, its electrons can move to a higher energy level, which is referred to as the excited state. In this state, the atom is not stable and will eventually return to its ground state, releasing the gained energy in the form of electromagnetic radiation. This process is known as emission. Additionally, if an atom absorbs electromagnetic radiation, the energy of the radiation can move an electron from a lower energy level to a higher one, causing excitation. Therefore, the statement 'An excited atom can return to its ground state by absorbing electromagnetic radiation' and 'The energy of an atom is increased when electromagnetic radiation is emitted from it' are true.

The energy of electromagnetic radiation is directly related to its frequency. As the frequency of electromagnetic radiation increases, its energy also increases. This means that the statement 'The energy of electromagnetic radiation increases as its frequency increases' is true.

Niels Bohr contributed to the field of atomic theory by introducing the concept of quantization, which states that the energy levels of electrons in atoms are quantized, meaning they can only exist in certain discrete energy levels or orbits. Therefore, the statement 'Niels Bohr quantized electromagnetic radiation' is true.

The statement 'Red light is more energetic than blue light' is false. Blue light has a higher frequency and therefore higher energy than red light.

The frequency and wavelength of electromagnetic radiation are inversely proportional, meaning that as the frequency increases, the wavelength decreases and vice versa. Therefore, the statement 'The frequency and wavelength of electromagnetic radiation are inversely proportional' is true.

Answer 2

The energy of electromagnetic radiation increases as its frequency increases.

The frequency and wavelength of electromagnetic radiation are inversely proportional.

Step-by-step explanation:

According to Max Plank's equation, the energy of electromagnetic radiation is given by E=hf where h= Plank's constant and f= frequency of the electromagnetic radiation. This means that the energy and frequency of electromagnetic radiation and its energy are related by a direct proportion. As frequency of the electromagnetic radiation increases, the energy of the radiation increases also.

However, frequency and wavelength of electromagnetic radiation are inversely related. The frequency decreases with increasing wavelength of electromagnetic radiation.