Periodic Table Quiz

Who prepared the first periodic table?

• Albert Einstein

• Dmitri Mendeleev

• Niels Bohr

• Henry Moseley

What did Mendeleev use to represent each element?

• Cards

• Books

• Graphs

• Tables

What property did Mendeleev arrange elements by?

• Atomic weight

• Color

• Shape

• Size

What did Moseley discover about elements?

• They are arranged by density

• They are arranged by size

• They are arranged by color

• They are arranged by atomic number

What did Mendeleev leave in his table for undiscovered elements?

• Gaps

• Colors

• Shapes

• Numbers

How many elements are known in the modern periodic table?

• 118

• 100

• 150

• 200

What did Mendeleev's periodic table help scientists do?

• Shape elements

• Color elements

• Size elements

• Classify elements

What did Mendeleev use to classify elements into groups?

• Similar properties

• Different colors

• Different shapes

• Different sizes

What is an isotope?

• Same size, different color

• Different atomic weight, same atomic number

• Same atomic weight, different atomic number

• Different size, same shape

What did Mendeleev correct in his table?

• Sizes

• Colors

• Shapes

• Atomic weights