CHEMISTRY - Matter - Parts of an Atom

The video explains the structure of an atom, highlighting its components: protons, neutrons, and electrons, and the vast empty space within. It uses the analogy of an Olympic swimming pool to describe the size of the nucleus and the movement of electrons. The video discusses the minuscule mass of atomic particles, emphasizing that the mass is concentrated in the nucleus. It also covers the charge of these particles, explaining that protons are positive, neutrons are neutral, and electrons are negative, resulting in a neutral overall charge for the atom.

What is the size of the nucleus compared to the entire atom?

• The size of a basketball

• The size of a grain of sand

• The size of a marble

• The size of a tennis ball

How many protons are needed to weigh 1 gram?

• 600 billion

• 600 million

• 600 trillion

• 600 sextillion

What is the relative mass of an electron compared to a proton?

• 1/2

• 1/1840

• 1

• 1840

Which particle in an atom is neutral in charge?

• Proton

• Neutron

• Electron

• Nucleus

Why is the overall charge of an atom neutral?

• Because electrons have no charge

• Because protons and neutrons cancel each other out

• Because there are more neutrons than protons

• Because the number of protons equals the number of electrons