Periodic Table Review

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What does the atomic mass of an element represent?

Back

The atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

Who developed the modern Periodic Table?

Back

Dmitri Mendeleev is credited with creating the modern Periodic Table, organizing elements by increasing atomic number.

Front

What trend occurs in ionization energy as you move from left to right across the Periodic Table?

Back

Ionization energy generally increases as you move from left to right across the Periodic Table.

Front

What is electronegativity?

Back

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

Front

How does atomic radius change across a period in the Periodic Table?

Back

Atomic radius decreases as you move from left to right across a period due to increased nuclear charge.

Front

What is the significance of the element symbol?

Back

The element symbol is a one- or two-letter abbreviation that represents a chemical element, derived from its name.

Front

What is the relationship between protons and atomic number?

Back

The atomic number of an element is equal to the number of protons in its nucleus.

Front

What happens to electronegativity as you move down a group in the Periodic Table?

Back

Electronegativity generally decreases as you move down a group in the Periodic Table.

Front

What is a group in the Periodic Table?

Back

A group is a vertical column in the Periodic Table that contains elements with similar chemical properties.