Question

atomic number 85
element name
number of protons
number of electrons

Explanation:

Step1: Identify the element with atomic number 85

The atomic number of an element is equal to the number of protons in its nucleus. The element with atomic number 85 is Astatine (At).

Step2: Determine the number of protons

For a neutral atom, the number of protons is equal to the atomic number. So, the number of protons = 85.

Step3: Determine the number of electrons

In a neutral atom, the number of electrons is equal to the number of protons. So, the number of electrons = 85.

Answer:

Element name	Number of protons	Number of electrons