What is the atomic number of a mystery element that has 6 protons, 6 electrons, and 6 neutrons?

Rationale

The atomic number of the mystery element is 6.

The atomic number of an element is determined by the number of protons present in its nucleus. In this case, the mystery element has 6 protons, which directly establishes its atomic number as 6.

A (6) CORRECT

This choice correctly identifies the atomic number as 6, corresponding to the presence of 6 protons. The atomic number uniquely determines the identity of the element, so an element with 6 protons is defined as carbon.

B (12) YOUR ANSWER

This option mistakenly represents the mass number, which is the total count of protons and neutrons combined. Since the mystery element has 6 protons and 6 neutrons, its mass number is 12, not its atomic number.

C (18) YOUR ANSWER

This choice is incorrect as it suggests an atomic number of 18, which corresponds to elements such as argon. The mystery element only has 6 protons, and therefore cannot have an atomic number of 18.

D (Not enough information) YOUR ANSWER

This option implies that there is insufficient data to determine the atomic number, which is inaccurate. The number of protons provided (6) is sufficient to definitively identify the atomic number as 6.

Conclusion

The atomic number of an element is solely defined by the number of protons in its nucleus. In this scenario, the mystery element contains 6 protons, leading to an atomic number of 6. Other choices either confuse mass number with atomic number or erroneously suggest a lack of information, underscoring the clarity provided by the basic principles of atomic structure.

What is the atomic number of a mystery element that has 6 protons, 6 electrons, and 6 neutrons?

The atomic number of the mystery element is 6.

Related Questions

Related Quizzes

How familiar were you with this question?

Report an Issue

Rate this Practice Test