1.

Based on equation E = -2.178 xx 10^(-18)((Z^2)/(n^2)) J certain conclusion are written. Which of them is not correct?

Answer»

Equation can be used to CALCULATE the energy change when the electron changes ORBIT.
For n = 3, the electron has more negative energy than it does for n = 5 which means that the electron is more TIGHTLY bound in the smallest allowed orbit.
The negative sign in the equation simply means that the energy of electron bound to the nucleus is lower it would be if the electrons were at the infinite distance from nucleus.
SMALLER the value of n, the LARGER is the orbit radius.

Answer :D


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