Periodic Table Quiz

What is the atomic number of the element Helium (He) as shown in the periodic table?

• 1

• 2

• 3

• 4

During a chemistry class, David is curious about the elements on the periodic table. The teacher asks him to identify which element is located in Group 2 and Period 3. Can you help David?

• Magnesium (Mg)

• Calcium (Ca)

• Sodium (Na)

• Potassium (K)

Identify the element that belongs to the Lanthanides series.

• Uranium (U)

• Thorium (Th)

• Lanthanum (La)

• Curium (Cm)

Which of the following elements is a Noble Gas?

• Neon (Ne)

• Iron (Fe)

• Hydrogen (H)

• Boron (B)

In a science class, Scarlett is learning about the composition of matter. What are atoms primarily described as in this context?

• The smallest particles of an element

• The building blocks of matter

• Invisible forces

• Basic units of energy

Why are atoms difficult to study?

• They are highly reactive

• They are too small in size

• They are always moving

• They are invisible

According to the size comparison given, the correct analogy is (a)   .

• Size of Earth : soda can = soda can
• Size of a soda can : Earth = atom :
• Size of an atom : soda can = soda c
• Size of a soda can : atom = Earth :

What would you eventually get if you broke something down into smaller and smaller pieces?

• Molecules

• Atoms

• Cells

• Particles

If you could line up 100,000,000 copper atoms in a single file, how long would they be approximately?

• 1 mm

• 1 cm

• 1 m

• 1 km

What instrument is used to see individual atoms and manipulate them one at a time, as shown in the image?

• Light Microscope

• Atomic Force Microscope (AFM)

• X-Ray Crystallography

• Electron Microscope