Atomic theory really changed how we understand the periodic table! Here’s a simple breakdown:
Early Ideas: John Dalton believed that atoms were tiny particles that could not be split apart.
Mendeleev's Contribution: Dmitri Mendeleev organized elements based on their atomic mass. He even left gaps for elements that hadn’t been discovered yet, predicting what they might be like.
Modern View: Now, we organize elements by their atomic number. This helps us understand how they behave much better.
These changes have made it easier for us to learn about chemistry!
Atomic theory really changed how we understand the periodic table! Here’s a simple breakdown:
Early Ideas: John Dalton believed that atoms were tiny particles that could not be split apart.
Mendeleev's Contribution: Dmitri Mendeleev organized elements based on their atomic mass. He even left gaps for elements that hadn’t been discovered yet, predicting what they might be like.
Modern View: Now, we organize elements by their atomic number. This helps us understand how they behave much better.
These changes have made it easier for us to learn about chemistry!