Atomic Structure and Nuclear Forces

The video tutorial by Jashan Chaudhary from JC Tuition covers the basics of stable and unstable nuclei. It begins with an overview of atomic structure, including protons, neutrons, and electrons, and their respective charges. The concept of isotopes and atomic mass is explained, followed by a detailed discussion on calculating the specific charge of particles. The strong nuclear force is introduced as the force that holds the nucleus together, counteracting electrostatic repulsion. Finally, the video explores different types of radiation, including alpha, beta, and gamma radiation, and their implications for nuclear stability.

What is the charge of a neutron?

• Positive

• Negative

• Neutral

• Variable

How is the atomic number of an element defined?

• Number of electrons

• Number of protons

• Sum of protons and neutrons

• Number of neutrons

What is the specific charge of an electron?

• 9.11 x 10^-31 C/kg

• 1.6 x 10^-19 C/kg

• 9.58 x 10^7 C/kg

• 1.76 x 10^11 C/kg

What is the result of an atom losing an electron?

• It becomes a molecule

• It becomes a proton

• It becomes an ion

• It becomes a neutron

Which force is responsible for holding the nucleus together?

• Gravitational force

• Strong nuclear force

• Electrostatic force

• Magnetic force

What is the range of the strong nuclear force?

• 3 to 4 femtometers

• 3 to 4 centimeters

• 3 to 4 meters

• Infinite

What happens to the atomic number during beta decay?

• It decreases by two

• It decreases by one

• It remains the same

• It increases by one

What is the composition of an alpha particle?

• Two protons and two neutrons

• Two electrons and two protons

• Two protons and two electrons

• Two neutrons and two electrons

Which type of radiation consists of fast-moving electrons?

• Gamma radiation

• Beta radiation

• Neutron radiation

• Alpha radiation

What is the effect of gamma radiation on the atomic number?

• Increases by two

• Increases by one

• Decreases by one

• Remains unchanged