Midterm Review 2024

Front

What is atomic radius?

Back

Atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons. It generally increases down a group and decreases across a period in the periodic table.

Front

What is the electron configuration of Manganese (Mn)?

Back

The electron configuration of Manganese (Mn) is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁵.

Front

What happens to kinetic energy when temperature increases?

Back

When temperature increases, kinetic energy also increases. This is because temperature is a measure of the average kinetic energy of the particles in a substance.

Front

What is the purpose of the Periodic Table?

Back

The purpose of the Periodic Table is to predict characteristics of known and unknown elements based on their position and properties.

Front

Which element is likely to have similar chemical properties to Astatine (At)?

Back

Fluorine (F) is likely to have similar chemical properties to Astatine (At) because they are both in the same group of the periodic table.

Front

Define ionization energy.

Back

Ionization energy is the energy required to remove an electron from an atom in its gaseous state. It generally increases across a period and decreases down a group.

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. It increases across a period and decreases down a group.

Front

Explain the concept of electron affinity.

Back

Electron affinity is the amount of energy released when an electron is added to a neutral atom in the gaseous state. It generally increases across a period.

Front

What is the relationship between temperature and thermal energy?

Back

As temperature increases, thermal energy also increases, leading to greater movement of particles within a substance.

Front

What are the main groups of the periodic table?

Back

The main groups of the periodic table include alkali metals, alkaline earth metals, transition metals, halogens, and noble gases.