Answer:
54
Explanation:
Given an atom of Tellurium;
Tellurium has an atomic number of 52;
Unknown:
The number of electrons in a -2 anion
Solution:
The atom is;
Te²⁻
A neutral tellurium atom has 52 electrons
When it forms an anion, it becomes negatively charged;
This implies that the number of electrons becomes more,
So, the number of electrons = 52 + 2 = 54
So, the electrons are 54
