Isotopes and Bohr Models

This video tutorial explains how to create Bohr models with isotopes. It begins with an introduction to Bohr models and isotopes, followed by a discussion on the mass of subatomic particles like protons, neutrons, and electrons. The tutorial provides detailed examples using beryllium and hydrogen isotopes, illustrating how to calculate the number of neutrons based on the given mass. The video emphasizes that isotopes differ in mass due to varying numbers of neutrons while maintaining the same number of protons.

What is the main focus of this video tutorial?

• Periodic table trends

• Bohr models with isotopes

• Bohr models with ions

• Basic Bohr models

Which subatomic particle is considered to have negligible mass in Bohr models?

• Proton

• Nucleus

• Neutron

• Electron

How many protons does a beryllium atom always have?

• 5

• 3

• 6

• 4

What is the mass number of a beryllium isotope with 6 neutrons?

• 11

• 10

• 9

• 12

What is the name of the hydrogen isotope with one neutron?

• Protium

• Deuterium

• Tritium

• Quadrium

Which hydrogen isotope is radioactive?

• Protium

• Deuterium

• None of them

• Tritium

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

• Number of neutrons

• Number of protons

• Number of electrons

• Atomic number

When calculating the mass of an isotope, which number should you use?

• The number of electrons

• The given mass number

• The average atomic mass from the periodic table

• The atomic number

What is the mass number of hydrogen with two neutrons?

• 4

• 3

• 2

• 1

Which of the following is NOT a name for a hydrogen isotope?

• Quadrium

• Protium

• Tritium

• Deuterium