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In Science / Junior High School | 2025-06-18

how have our ideas about atoms changed over the years? This graphic looks at atomic models and how they develope​

Asked by YanaLlames

Answer (1)

Answer:Our ideas about atoms have changed a lot!At first, people thought atoms were just tiny, solid balls. Then, we learned they have smaller parts, like electrons floating in a positive "soup" (plum pudding model). Later, we found out there's a tiny, dense center called a nucleus (Rutherford model) with electrons orbiting it like planets (Bohr model). Now, we know electrons are in more complex "clouds" of probability around the nucleus (quantum model).So, atoms went from simple balls to complex structures with even stranger, wavelike electrons!

Answered by urprettysus | 2025-06-18