4. Here is the symbol for an isotope of polonium: What is the atomic number (Z) of this polonium isotope? __ What is the mass of this isotope? __ How many neutrons are in this isotope? __ How many protons are in this isotope? __ How many electrons are in this isotope? __ What is the name of this isotope? __ To which group/family does this element belong? __

# Explanation:## Step1: Identify the atomic number (Z)### The atomic number (Z) of an element is the number of protons in its nucleus. For polonium, the atomic number is 84.## Step2: Determine the mass number### The mass number of an isotope is the sum of protons and neutrons in its nucleus. For this polonium isotope, let's assume it is Polonium-210, so the mass number is 210.## Step3: Calculate the number of neutrons### The number of neutrons is the mass number minus the atomic number: .## Step4: Identify the number of protons### The number of protons is equal to the atomic number, which is 84.## Step5: Determine the number of electrons### In a neutral atom, the number of electrons equals the number of protons, which is 84.## Step6: Name the isotope### The isotope is named Polonium-210.## Step7: Identify the group/family### Polonium belongs to Group 16 (the chalcogens) in the periodic table.# Answer:### Atomic Number (Z): 84### Mass Number: 210### Number of Neutrons: 126### Number of Protons: 84### Number of Electrons: 84### Name of Isotope: Polonium-210### Group/Family: Group 16 (Chalcogens)