In a neutral state, this atom has 86 electrons. What is the chemical symbol and atomic number of this element?

1. Break Down the Problem

We need to identify the element that has 86 electrons in its neutral state. The number of electrons in a neutral atom is equal to the number of protons, which is also the atomic number.

2. Relevant Concepts

• Definition of Atomic Number: The atomic number of an element is the number of protons in the nucleus of an atom. In neutral atoms, the number of protons equals the number of electrons.

3. Analysis and Detail

Given that there are 86 electrons in a neutral atom:

• Atomic Number: Therefore, the atomic number of this element is 86.
• We will use the periodic table to find the corresponding element for atomic number 86.

4. Verify and Summarize

Looking up atomic number 86 in the periodic table, we find it corresponds to the element Radon (Rn).

Final Answer

The chemical symbol is Rn and the atomic number is 86.