Is the mass of iron greater than, less than, or equal to the mass of aluminum?
A)
The mass of iron is equal to the mass of aluminum.
B)
The mass of iron is greater than the mass of aluminum.
C)
The answer depends on temperature.
D)
This is an incorrectly stated question. Iron and aluminum are types of material, mass is the property of an object.
E)
The mass of iron is less than the mass of aluminum.
Question 2
How many electrons can be found with principal quantum number n=3 in a suitably heavy atom?
A) 9 B) 6 C) 20 D) 18