Bohr models, electron configurations, and periodic trends

Front

What is the Bohr model of the atom?

Back

The Bohr model describes the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus, with quantized energy levels.

Front

Define electronegativity.

Back

Electronegativity is the tendency of an atom to attract electrons in a chemical bond, measured on a scale where fluorine is the most electronegative element.

Front

Which element has a higher electronegativity: Cl or Al?

Back

Chlorine (Cl) has a higher electronegativity than Aluminum (Al).

Front

What happens to electrons when atoms absorb energy?

Back

When atoms absorb energy, their electrons move to higher energy levels.

Front

What occurs when electrons return to lower energy levels?

Back

Electrons emit energy in the form of light when they return to lower energy levels.

Front

How many electrons does Silicon (Si) have?

Back

Silicon (Si) has 14 electrons.

Front

What is the formula to calculate the energy of a photon?

Back

Energy (E) = h * f, where h is Planck's constant (6.626 x 10^-34 J·s) and f is the frequency of the photon.

Front

What is the relationship between frequency and wavelength of a photon?

Back

The relationship is given by the equation: c = λ * f, where c is the speed of light, λ is the wavelength, and f is the frequency.

Front

What is the electron configuration for Zinc?

Back

The electron configuration for Zinc (Zn) is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰.

Front

How many total electrons are in the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰?

Back

There are 30 total electrons in this electron configuration.