Periodic Table and Electron Configuration

Front

What are the alkali metals?

Back

The alkali metals are a group of highly reactive metals found in Group 1 of the periodic table, including lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).

Front

What is a period in the periodic table?

Back

A period is a horizontal row in the periodic table, indicating elements with the same number of electron shells.

Front

What is the electron configuration of an oxygen atom?

Back

The electron configuration of an oxygen atom is 1s² 2s² 2p⁴.

Front

What is noble gas configuration?

Back

Noble gas configuration is a shorthand notation for electron configuration that uses the nearest noble gas to represent core electrons.

Front

What is the noble gas configuration for phosphorus?

Back

The noble gas configuration for phosphorus is [Ne] 3s² 3p³.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What group of elements has two valence electrons?

Back

The alkaline earth metals, found in Group 2 of the periodic table, have two valence electrons.

Front

What is the significance of the periodic table?

Back

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

Front

What are transition metals?

Back

Transition metals are elements found in Groups 3-12 of the periodic table, known for their ability to form variable oxidation states and colored compounds.

Front

What is the difference between metals, nonmetals, and metalloids?

Back

Metals are typically shiny, conductive, and malleable; nonmetals are dull, insulative, and brittle; metalloids have properties of both metals and nonmetals.