Neutron

The video explains the role of neutrons in the nuclei of atoms, highlighting their similar mass to protons but lack of electric charge. It further discusses isotopes, which are variations of the same element with different numbers of neutrons.

What is the characteristic of particles found in the nuclei of atoms that have a similar mass to protons?

• They have a positive charge.

• They are larger than protons.

• They have no electric charge.

• They have a negative charge.

What can vary among atoms of the same element?

• The number of protons

• The number of electrons

• The number of neutrons

• The atomic number

What are different versions of the same element called?

• Molecules

• Ions

• Isotopes

• Compounds

Which of the following is true about isotopes?

• They have different numbers of electrons.

• They have different atomic numbers.

• They have different numbers of neutrons.

• They have different numbers of protons.

How do isotopes of an element differ from each other?

• By their chemical properties

• By their atomic number

• By their number of protons

• By their number of neutrons