Subatomic Particles and Atomic Structure

This video tutorial covers the basics of atomic structure, including elements, the periodic table, and a simple atomic model. It explains isotopes, their stability, and how they differ in neutron numbers. The video also introduces notation for isotopes, atomic mass units, and the concept of specific charge, providing examples for calculation.

What is the primary basis for arranging elements in the periodic table?

• Order of discovery

• Order of reactivity

• Alphabetical order

• Order of mass

Which subatomic particle has a positive charge?

• Electron

• Photon

• Proton

• Neutron

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

• Equal to a proton

• Twice that of a proton

• About a two-thousandth of a proton

• Half that of a proton

What does the atomic number of an element represent?

• Number of electrons

• Number of isotopes

• Number of protons

• Number of neutrons

What is the main difference between isotopes of the same element?

• Number of protons

• Number of atoms

• Number of electrons

• Number of neutrons

What is the nucleon number of an isotope?

• Number of neutrons

• Number of protons

• Total number of protons and neutrons

• Number of electrons

How is the neutron number of an isotope calculated?

• Mass number minus atomic number

• Proton number minus nucleon number

• Nucleon number minus proton number

• Atomic number minus mass number

What is an atomic mass unit defined as?

• Mass of a hydrogen atom

• Mass of a carbon-12 atom

• A twelfth of the mass of a carbon-12 atom

• Mass of an oxygen atom

What does specific charge refer to?

• Charge-to-mass ratio of a particle

• Mass-to-charge ratio of a particle

• Mass of a particle

• Charge of a particle

Which of the following particles has the highest specific charge?

• Proton

• Neutron

• Electron

• Alpha particle