Understanding Carbon and Isotopes

The video tutorial explains how to identify elements using the periodic table, focusing on atomic numbers. It highlights that the atomic number equals the number of protons, using carbon as an example. Carbon, with an atomic number of six, always has six protons. The video also discusses isotopes, specifically carbon-12 and carbon-14, which differ in neutron count but share the same number of protons.

What does the atomic number of an element represent?

• The atomic mass

• The number of electrons

• The number of protons

• The number of neutrons

Where can you find the atomic number on the periodic table?

• Below the element symbol

• To the left of the element symbol

• To the right of the element symbol

• Above the element symbol

Which element has an atomic number of six?

• Oxygen

• Nitrogen

• Helium

• Carbon

What is the term for different forms of the same element with varying numbers of neutrons?

• Isotopes

• Compounds

• Ions

• Molecules

How many neutrons does carbon-12 have?

• Six

• Eight

• Twelve

• Fourteen

What is the total number of protons and neutrons in carbon-14?

• Six

• Eight

• Fourteen

• Twelve

Which isotope of carbon has six protons and eight neutrons?

• Carbon-13

• Carbon-12

• Carbon-15

• Carbon-14