Understanding Carbon and Isotopes

The video tutorial explains how to identify an element based on its number of protons and neutrons. It begins by introducing the concept of atomic number, which corresponds to the number of protons in an element. Using the periodic table, the tutorial identifies carbon as the element with six protons. It further explains that carbon can have different isotopes, such as carbon-12 and carbon-13, depending on the number of neutrons. The video concludes by confirming that an element with six protons and seven neutrons is carbon-13.

What is the atomic number of an element with six protons?

• 6

• 8

• 5

• 7

Which element is identified by having six protons?

• Helium

• Oxygen

• Nitrogen

• Carbon

What is the most common isotope of carbon?

• Carbon-13

• Carbon-12

• Carbon-11

• Carbon-14

How many neutrons does carbon-13 have?

• 7

• 5

• 6

• 8

What defines an isotope of an element?

• Number of protons

• Atomic number

• Number of electrons

• Number of neutrons