Midterm Review

Front

What are valence electrons?

Back

Valence electrons are the s- and p- electrons in the highest energy level of an atom, which are involved in chemical bonding.

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom.

Front

What are alkali metals?

Back

Alkali metals are the elements found in Group 1 of the periodic table, known for being highly reactive.

Front

What is a chemical property?

Back

A chemical property is a characteristic of a substance that becomes evident during a chemical reaction, such as reactivity with oxygen.

Front

How do you calculate density?

Back

Density is calculated using the formula: Density = Mass/Volume.

Front

What is the density of a material with a mass of 67.55 g and a volume of 8.30 cm^3?

Back

The density is 8.14 g/cm^3.

Front

What is the difference between physical and chemical properties?

Back

Physical properties can be observed without changing the substance's identity, while chemical properties can only be observed during a chemical change.

Front

What is electronegativity?

Back

Electronegativity is a measure of an atom's ability to attract and hold onto electrons in a chemical bond.

Front

What are alkaline earth metals?

Back

Alkaline earth metals are the elements in Group 2 of the periodic table, known for being reactive but less so than alkali metals.

Front

What is electron affinity?

Back

Electron affinity is the amount of energy released when an electron is added to a neutral atom.