Subatomic Particles and Atomic Structure

This tutorial covers the structure of atoms, focusing on subatomic particles like protons, neutrons, and electrons. It explains atomic mass, electrical charge, and the concept of isotopes. The video also compares the electron cloud model and the Bohr model, highlighting their usefulness in understanding atomic interactions.

What is the shape of an atom?

• Spherical

• Cubical

• Pyramidal

• Cylindrical

Which subatomic particle has a positive charge?

• Photon

• Electron

• Proton

• Neutron

What is the approximate mass of an electron in atomic mass units (AMU)?

• 1 AMU

• 0.5 AMU

• 0.005 AMU

• 0.1 AMU

What is the term for atoms of the same element with different numbers of neutrons?

• Ions

• Isotopes

• Compounds

• Molecules

What is the atomic number of an element?

• The number of protons

• The number of electrons

• The total mass of the atom

• The number of neutrons

Which model of the atom shows electrons in different energy levels?

• Dalton model

• Rutherford model

• Thomson model

• Bohr model

In the Bohr model, what are the electrons in the outermost shell called?

• Core electrons

• Bound electrons

• Valence electrons

• Free electrons

Where are protons and neutrons located in an atom?

• In the electron cloud

• In the nucleus

• In the outer shell

• In the atomic orbitals

What is the charge of a neutron?

• Neutral

• Negative

• Variable

• Positive

Which force holds the nucleus together?

• Weak nuclear force

• Electromagnetic force

• Gravitational force

• Strong nuclear force