Groups of the periodic table

Front

What are alkali metals?

Back

Alkali metals are the elements found in Group 1A of the periodic table. They are highly reactive, have one valence electron, and include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).

Front

What is the reactivity of alkali metals?

Back

Alkali metals are extremely reactive due to their single valence electron, which they can easily lose to form positive ions.

Front

What is the group number for beryllium?

Back

Beryllium is in Group 2 of the periodic table.

Front

Which element is most similar to boron (B) based on periodic table location?

Back

Aluminum (Al) is most similar to boron (B) in terms of physical and chemical properties.

Front

What are the properties of aluminum (Al)?

Back

Aluminum is a shiny, gray-colored solid at room temperature, conducts electricity, and can dent when hit with a hammer.

Front

What is the main characteristic of noble gases?

Back

Noble gases, found in Group 18, are characterized by their lack of reactivity due to having a full valence shell.

Front

What are alkaline earth metals?

Back

Alkaline earth metals are the elements in Group 2 of the periodic table, including beryllium (Be), magnesium (Mg), calcium (Ca), and others.

Front

What is a valence electron?

Back

A valence electron is an electron in the outermost shell of an atom that can participate in chemical bonding.

Front

What is the significance of group numbers in the periodic table?

Back

Group numbers indicate the number of valence electrons in the elements of that group, which influences their chemical properties.

Front

What is the difference between metals and nonmetals?

Back

Metals are typically shiny, conductive, and malleable, while nonmetals are usually dull, insulative, and brittle.