Periodic History and Trends

Front

Back

Beta decay is the process where a neutron in an atom decays into a proton and an electron, emitting the electron (beta particle).

Front

What is the tendency of an atom to attract a shared pair of electrons called?

Back

Electronegativity is the measure of an atom's ability to attract and hold onto electrons in a chemical bond.

Front

What is a horizontal row of elements in the periodic table called?

Back

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

Front

Who is credited with organizing the first periodic table?

Back

Dmitri Mendeleev is known for creating the first widely recognized periodic table of elements.

Front

What are the elements along the dark line on the periodic table called?

Back

Metalloids are elements that have properties of both metals and nonmetals, located along the zig-zag line on the periodic table.

Front

What is the definition of atomic radii?

Back

Atomic radii refers to the size of an atom, typically measured as the distance from the nucleus to the outermost electron shell.

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom in its gaseous state.

Front

What are noble gases?

Back

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

Front

What is the significance of the periodic law?

Back

The periodic law states that the properties of elements are a periodic function of their atomic numbers, leading to the organization of the periodic table.

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.