Periodic Table Fundamentals Quiz

What does the atomic number of an element represent?

• The number of protons in an atom

• The number of neutrons in an atom

• The number of electrons in an atom

• The number of atoms in a molecule

Elements in the same period (row) of the periodic table have the same number of what?

• Electron shells

• Protons

• Neutrons

• Valence electrons

Elements in the same group (column) of the periodic table have similar properties because they have the same number of what?

• Valence electrons

• Protons

• Neutrons

• Electron shells

Where are metals typically found on the periodic table?

• Left side

• Right side

• Middle

• Top row

What type of elements are found along the zigzag line on the periodic table and show properties of both metals and nonmetals?

• Metalloids

• Noble gases

• Alkali metals

• Halogens

How does the organization of the periodic table help you predict the properties of an unknown element?

• By showing the atomic mass of each element only

• By grouping elements with similar properties together in columns and rows

• By listing elements in alphabetical order

• By arranging elements based on their melting points

Which feature of the periodic table allows you to infer the chemical behavior of an unknown element?

• The color of the element's symbol

• The element's position in a specific group or period

• The font size of the element's name

• The number of vowels in the element's name

If you discover a new element, how can the periodic table help you predict its reactivity?

• By comparing its position to other elements in the same group

• By looking at the table's title

• By counting the number of elements in the table

• By checking the table's color scheme

What does the periodic table primarily organize elements by?

• Their alphabetical order

• Their atomic number and recurring chemical properties

• Their density

• Their boiling points

Why is the periodic table a useful tool for chemists?

• It provides a random list of elements

• It helps predict properties and behaviors of elements based on their organization

• It only shows the symbols of elements

• It is used only for historical reference