The Nucleus Flashcards
All 5 cards in this deck
How does the size of the nucleus compare with the size of the whole atom?
The nucleus is very small compared with the atom — about 10 000 times smaller in diameter.
Where is most of the mass of an atom concentrated?
In the nucleus, because protons and neutrons each have a relative mass of 1 while electrons have almost no mass.
What is the approximate diameter of an atom?
About m (0.1 nm).
True or false? Most of the volume of an atom is empty space.
True. The tiny nucleus is surrounded by electron shells with mostly empty space between.
What is the overall charge of the nucleus of an atom?
Positive, because it contains protons () and neutrons (0).