Units 5 and 6 Review

Front

What is an alkali metal?

Back

Alkali metals are elements found in Group 1 of the periodic table, characterized by having one valence electron. They are highly reactive, especially with water. Example: Sodium (Na).

Front

What is the chemical formula for hydrochloric acid?

Back

The chemical formula for hydrochloric acid is HCl.

Front

What does the period number in the periodic table indicate?

Back

The period number indicates how many electron shells an element has.

Front

How does ionization energy change as you move down a group in the periodic table?

Back

Ionization energy decreases as you move down a group in the periodic table.

Front

What is the formula for Nitrous Acid?

Back

The formula for Nitrous Acid is HNO2.

Front

What are the properties of alkali metals?

Back

Alkali metals are soft, shiny, and have low melting points. They are highly reactive, especially with water, forming alkaline hydroxides.

Front

What is the significance of valence electrons?

Back

Valence electrons determine an element's chemical properties and its ability to bond with other elements.

Front

What is the difference between an acid and a base?

Back

Acids donate protons (H+) in a solution, while bases accept protons. Acids have a pH less than 7, and bases have a pH greater than 7.

Front

What is the general trend of atomic radius in the periodic table?

Back

Atomic radius increases as you move down a group and decreases as you move across a period from left to right.

Front

What is the role of the periodic table in chemistry?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.