Answer:
Step-by-step explanation:
The next charge on an object with an excess of 2.15x10^20 protons can be calculated using the formula Q = ne, where Q is the charge, n is the number of excess protons, and e is the elementary charge. The elementary charge is a fundamental physical constant that represents the electric charge carried by a single proton or electron. Its value is approximately 1.602x10^-19 coulombs.
Substituting the given values, we get:
Q = (2.15x10^20)(1.602x10^-19)
Q = 3.44x10
3.44x10-1 C
Therefore, the next charge on an object with an excess of 2.15x10^20 protons is 3.44x10^-1 Coulombs.