1. Check statement A: “The properties of elements are function of atomic weights.”

   This is not true for the modern periodic table.

   • Modern periodic law states: $\text{Properties of elements are periodic functions of their atomic numbers.}$
   • This replaced Mendeleev’s old atomic-mass-based arrangement.

   So, A is NOT true.

2. Check statement B: “The properties of elements are function of atomic numbers.”

   This is exactly the modern periodic law.

   So, B is true.

3. Check statement C: “Elements having similar outer electronic configurations are arranged in same period.”

   This is not true.

   • Elements with similar outer electronic configuration are placed in the same group, not the same period.
   • Example: Li, Na, K all have outer configuration $ns^1$ and are in the same group.

   So, C is NOT true.

4. Check statement D: “An element's location reflects the quantum numbers of the last filled orbital.”

   This is true.

   • The position of an element in the periodic table is related to the subshell into which the last electron enters.
   • This determines the block ($s, p, d, f$), period, and group trends.

   So, D is true.

5. Check statement E: “The number of elements in a period is same as the number of atomic orbitals available in energy level that is being filled.”

   This is not true as stated.

   • The number of elements in a period equals the number of electrons that can be accommodated in the subshells being filled in that period, not merely the number of orbitals.
   • For example:
     • 2nd period has 8 elements because $2s$ and $2p$ are filled.
     • Number of orbitals involved = $1 + 3 = 4$ orbitals.
     • But number of elements = $8$, not $4$.

   So, E is NOT true.

6. List all statements that are NOT true:

   $A,\ C,\ E$

7. Match with the options:

   • Option A: $A, C$ and $E$ only ✅
   • Option B: $A$ and $E$ only ❌
   • Option C: $B, C$ and $E$ only ❌
   • Option D: $D$ and $E$ only ❌

Therefore, the correct option is: $\boxed{A}$