Trends on the Periodic Table

Front

What is a group in the periodic table?

Back

A group is a vertical column in the periodic table where elements share similar chemical properties.

Front

What is a period in the periodic table?

Back

A period is a horizontal row in the periodic table that indicates the number of electron shells in the elements.

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals, such as silicon.

Front

What is the significance of atomic number?

Back

The atomic number determines the identity of an element and its position in the periodic table.

Front

What are the general properties of metals?

Back

Metals are typically shiny, conductive, ductile, and malleable.

Front

What is the difference between atomic mass and atomic number?

Back

Atomic mass is the weighted average mass of an element's isotopes, while atomic number is the number of protons in the nucleus.

Front

What is the trend in reactivity for alkali metals?

Back

Reactivity increases as you move down the group in alkali metals.

Front

What is the trend in electronegativity across a period?

Back

Electronegativity generally increases from left to right across a period.

Front

What is a noble gas?

Back

Noble gases are elements in Group 18 that are inert and do not readily react with other elements.

Front

What is the role of valence electrons?

Back

Valence electrons determine how an element will react chemically with other elements.