Y7U1T3S7 - Periodic table

What problem was Mendeleev trying to solve?

• Finding a pattern for the elements
• Discovering the structure of atoms
• Finding a way to create new elements
• Exploring the properties of water-reactive elements

What did Mendeleev write on each card?

• The element's name and its atomic weight
• The element's name and its melting point
• The element's name and its atomic number
• The element's name and its chemical formula

How did Mendeleev's approach differ?

• He combined both properties and atomic weight
• He grouped elements by their properties only
• He grouped elements by their atomic weight only
• He ignored properties and atomic weight

What was the major challenge Mendeleev faced?

• He was missing some of the elements
• He had too many elements to work with
• He didn't know how to use atomic weights
• He didn't have enough data on the elements

What happened during Mendeleev's dream?

• He saw a vision of the periodic table
• He discovered a new element
• He solved a complicated mathematical problem
• He realized the properties of water-reactive elements

What did Mendeleev's discovery reveal?

• There is a numerical pattern underlying the structure of matter
• There is no pattern in the elements
• The periodic table is outdated and inaccurate
• Elements should only be grouped by their atomic weight

What is the significance of the periodic table?

• It decodes the relationships between elements
• It's a tool for creating new elements
• It explains the structure of atoms
• It's on the wall of every chemistry lab

What is remarkable about the periodic table?

• It's actually awe-inspiring
• It's an ancient discovery
• It's on the wall of every chemistry lab
• It's used to create new elements

What did Mendeleev combine for a universal understanding?

• Elements' atomic weights and properties
• Elements' names and chemical formulas
• Elements' names and atomic numbers
• Elements' atomic numbers and melting points

Draw an atom of oxygen