periodic table flashcard

Front

What are metals in the periodic table?

Back

Metals are elements that are typically shiny, good conductors of heat and electricity, and malleable. They are found on the left side and in the center of the periodic table.

Front

How do alkaline earth metals compare in reactivity to alkali metals?

Back

Alkaline earth metals are less reactive than alkali metals because they have two valence electrons, making them more stable.

Front

What is the property of nonreactive nonmetals in the periodic table?

Back

Nonreactive nonmetals, such as noble gases, have a full outer shell of electrons, making them stable and unlikely to react with other elements.

Front

What are valence electrons?

Back

Valence electrons are the electrons located in the outermost energy level of an atom, which determine how the atom interacts with other atoms.

Front

What are alkaline-earth metals?

Back

Alkaline-earth metals are elements in Group 2 of the periodic table, characterized by having two valence electrons, being silver-colored, and being denser than alkali metals.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

Front

What are nonmetals?

Back

Nonmetals are elements that are typically poor conductors of heat and electricity, and they can be gases, liquids, or brittle solids at room temperature.

Front

What are metalloids?

Back

Metalloids are elements that have properties intermediate between metals and nonmetals, and they are found along the zig-zag line on the periodic table.

Front

What are noble gases?

Back

Noble gases are a group of nonmetals in Group 18 of the periodic table, known for their lack of reactivity due to having a full outer shell of electrons.

Front

What is the significance of the atomic number in the periodic table?

Back

The atomic number represents the number of protons in an atom's nucleus and determines the element's identity.