Pre-Flashcard and post flashcard Periodic Trends

Front

What is the periodic trend for electronegativity?

Back

Electronegativity increases across a period (left to right) and decreases down a group (top to bottom) in the periodic table.

Front

Which group of elements is known as the Alkali Metals?

Back

The Alkali Metals are found in Group 1 of the periodic table and include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).

Front

What is the significance of the octet rule in chemistry?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons, leading to greater stability.

Front

Where are metals located on the periodic table?

Back

Metals are primarily located on the left side and in the center of the periodic table.

Front

What is the definition of a nonmetal?

Back

Nonmetals are elements that typically lack the properties of metals, such as conductivity and malleability, and are found on the right side of the periodic table.

Front

What is an anion?

Back

An anion is a negatively charged ion that is formed when an atom gains one or more electrons.

Front

What is a cation?

Back

A cation is a positively charged ion that is formed when an atom loses one or more electrons.

Front

What are noble gases?

Back

Noble gases are elements in Group 18 of the periodic table that are characterized by their lack of reactivity due to having a full valence shell.

Front

What is the trend for atomic radius in the periodic table?

Back

Atomic radius decreases across a period (left to right) and increases down a group (top to bottom).

Front

What is ionization energy?

Back

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