Podcast
Questions and Answers
What is the approximate diameter of an atom?
What is the approximate diameter of an atom?
- $10^{-15}$ m
- $10^{-5}$ m
- $10^{-10}$ m (correct)
- $10^{-20}$ m
What is the composition of the nucleus of an atom?
What is the composition of the nucleus of an atom?
- Protons and electrons
- Protons and neutrons (correct)
- Neutrons and electrons
- Neutrons and positrons
Who proposed the theory that matter consists of indivisible particles called atoms?
Who proposed the theory that matter consists of indivisible particles called atoms?
- Isaac Newton
- Democritus (correct)
- Galileo Galilei
- Aristotle
Which particles are much heavier and constitute the majority of an atom's mass?
Which particles are much heavier and constitute the majority of an atom's mass?
What is the historical significance of Democritus' theory on atoms?
What is the historical significance of Democritus' theory on atoms?
How small are the nuclei compared to the size of the atom?
How small are the nuclei compared to the size of the atom?
What is the main component of an atom's nucleus?
What is the main component of an atom's nucleus?
Which part of an atom occupies almost all of the atom's volume?
Which part of an atom occupies almost all of the atom's volume?
How does Democritus describe atoms in his theory?
How does Democritus describe atoms in his theory?
Which part of an atom is about 100,000 times smaller than the diameter of the atom?
Which part of an atom is about 100,000 times smaller than the diameter of the atom?
What is the main difference between the nucleus and the rest of the atom?
What is the main difference between the nucleus and the rest of the atom?
What is the approximate diameter of the nucleus of an atom?
What is the approximate diameter of the nucleus of an atom?
