The basis for the relative atomic mass scale is an atom of … that contains 6 protons and 6 neutrons.Question 2Select one:a.Carbonb.Oxygenc.Hydrogend.Copper

Break Down the Problem

1. Identify the element with 6 protons and 6 neutrons.
2. Determine the correct answer from the provided options.

Relevant Concepts

• The number of protons in an atom identifies the element.
• Carbon has an atomic number of 6, which means it has 6 protons.
• The atomic mass of carbon is approximately 12 u (unified atomic mass units) since it has 6 protons and 6 neutrons.

Analysis and Detail

1. Element Identification:
   • Since the question specifically mentions an atom with 6 protons, it can only be carbon, as other elements listed have different atomic numbers:
     • Oxygen (8 protons)
     • Hydrogen (1 proton)
     • Copper (29 protons)

Verify and Summarize

• The only option that meets the criteria of having 6 protons (and thus being carbon) is option a.

Final Answer

a. Carbon