Periodicity and an Introduction to the Periodic Table

Front

What is the trend for valence electron number in the periodic table?

Back

They increase across a period and match the group number.

Front

What is the trend for energy level number in the periodic table?

Back

They increase down a group.

Front

What can be observed in the relationship between the Alien Periodic Table Activity and the actual periodic table?

Back

Trends or patterns can be seen both going across and down the table.

Front

What is the trend for electron number in neutral atoms across a period?

Back

They increase across a period.

Front

What does the Periodic Table catalog?

Back

Different types of atoms or elements.

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that determine its chemical properties.

Front

What is a group in the periodic table?

Back

A vertical column that contains elements with similar chemical properties.

Front

What is a period in the periodic table?

Back

A horizontal row that indicates the number of energy levels in the elements.

Front

What is the significance of the atomic number in the periodic table?

Back

It represents the number of protons in an atom and determines the element's identity.

Front

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

Back

Atomic radius decreases across a period and increases down a group.