Periodic Table Trends

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. It is a key factor in determining how atoms interact in chemical bonds.

Front

Which element has the highest electronegativity?

Back

Fluorine (F) has the highest electronegativity of all elements.

Front

What is the trend of electronegativity in the periodic table?

Back

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

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals. They are found along the staircase line on the periodic table.

Front

Which group of the periodic table contains alkaline earth metals?

Back

Group 2 contains alkaline earth metals, such as calcium (Ca) and magnesium (Mg).

Front

What is atomic radius?

Back

Atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons.

Front

How does atomic radius change across a period?

Back

Atomic radius decreases across a period from left to right due to increasing nuclear charge, which pulls electrons closer to the nucleus.

Front

How does atomic radius change down a group?

Back

Atomic radius increases down a group due to the addition of electron shells.

Front

What are the main categories of elements in the periodic table?

Back

The main categories are metals, nonmetals, and metalloids.

Front

What is the significance of the staircase line on the periodic table?

Back

The staircase line separates metals from nonmetals and indicates the location of metalloids.