Understanding Hydrogen Isotopes and Atomic Number

The video tutorial explains the concept of atomic number, focusing on hydrogen, which has one proton and no neutrons. It describes how the atomic number corresponds to the number of protons in an element. The video further explores hydrogen's isotopes: protium, deuterium, and tritium, highlighting their differences in neutron count. The tutorial concludes by emphasizing that regardless of the number of neutrons, an element with one proton is always hydrogen.

What does the atomic number of an element represent?

• The total number of electrons

• The number of protons in the nucleus

• The atomic mass of the element

• The number of neutrons in the nucleus

Which element is identified by having one proton and no neutrons?

• Oxygen

• Hydrogen

• Carbon

• Helium

What is the name given to hydrogen with no neutrons?

• Deuterium

• Tritium

• Protium

• Helium

Which isotope of hydrogen contains one neutron?

• Tritium

• Protium

• Helium

• Deuterium

What is the isotope of hydrogen with two neutrons called?

• Protium

• Deuterium

• Tritium

• Helium

How does the number of neutrons affect the identity of an element?

• It does not affect the element's identity

• It changes the element's chemical properties

• It changes the element completely

• It determines the element's atomic number

What remains constant for an element regardless of its isotopes?

• Atomic mass

• Number of protons

• Number of electrons

• Number of neutrons