Periodic Table

Multiple Choice

Which of the following statements best describes Dmitri Mendeleev's contribution to science?

• He discovered all the elements in the periodic table.

• He organized the first periodic table and predicted the existence of undiscovered elements.

• He invented the atomic model.

• He named all the elements after himself.

Open Ended

Why was Dmitri Mendeleev's arrangement of the elements in the periodic table considered unique and important for scientific discovery?

Multiple Choice

What is the main criterion for arranging elements in the periodic table?

• Increasing atomic number

• Increasing atomic mass

• Alphabetical order

• Decreasing number of protons

Multiple Select

Which of the following statements about groups/families in the periodic table are correct?

• They are vertical columns.

• There are 18 groups in total.

• Elements in a group have similar chemical properties.

• Groups are arranged horizontally.

Multiple Choice

Which group in the periodic table contains highly reactive elements that combine with metals to form salts?

• Group 1

• Group 2

• Group 17

• Group 18

Open Ended

Explain how the period number of an element in the periodic table relates to its number of energy levels or shells.

Multiple Choice

If an element is found in Period 2 of the periodic table, how many energy levels does it have?

• 1

• 2

• 4

• 7

Open Ended

Explain how the reactivity of metals changes as you move across and down the periodic table.

Multiple Choice

Which of the following statements about periodic table trends is correct?

• Atomic radius decreases as you move down a group.

• The number of protons increases as you move to the right and down the periodic table.

• Metals become less reactive as you move to the left of the periodic table.

• The number of protons decreases as you move to the right of the periodic table.

Open Ended

Identify 3 elements on the periodic table that are considered to be noble gases.

Open Ended

Identify 3 elements that would have similar chemical properties to Magnesium (Mg).

Open Ended

What element is located in Group 13 and Period 3?

Open Ended

List the following elements from least reactive to most reactive: Iron, Sodium, Gold.

Reorder

Reorder the following from MOST reactive to LEAST reactive.

• Sodium (Na)

• Titanium (Ti)

• Manganese (Mn)

• Zinc (Zn)

• Neon (Ne)

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5