Unit 4 Chemistry - Periodic Table Families

Front

What is the definition of a noble gas?

Back

Noble gases are a group of chemical elements that are odorless, colorless, monatomic gases with very low chemical reactivity. They include helium, neon, argon, krypton, xenon, and radon.

Front

What is the most reactive alkali metal?

Back

Francium is the most reactive alkali metal due to its large atomic size and low ionization energy.

Front

Which element in period 3 is a halogen?

Back

Chlorine is the halogen located in period 3 of the periodic table.

Front

What group number corresponds with the halogens?

Back

The halogens correspond to group number 17 in the periodic table.

Front

What is the ion charge of halogens?

Back

Halogens typically have an ion charge of -1.

Front

What are alkali metals?

Back

Alkali metals are the elements in group 1 of the periodic table, characterized by having one electron in their outermost shell, making them highly reactive.

Front

What is the general trend in reactivity for alkali metals?

Back

Reactivity increases down the group; for example, lithium is less reactive than cesium.

Front

What are alkaline earth metals?

Back

Alkaline earth metals are the elements in group 2 of the periodic table, known for having two electrons in their outermost shell.

Front

What is the ion charge of alkaline earth metals?

Back

Alkaline earth metals typically have an ion charge of +2.

Front

What is the significance of the outer electron configuration in determining reactivity?

Back

Elements with nearly full or nearly empty outer shells are more reactive, as they tend to lose or gain electrons easily to achieve stability.