To find the total value obtained by adding up the atomic numbers of the given elements, we need to determine the atomic numbers of each element and perform the addition.
The atomic number of an element corresponds to the number of protons in its nucleus, which uniquely identifies the element on the periodic table.
Let's determine the atomic numbers of the given elements:
Lithium-7: Lithium (Li) has an atomic number of 3.
W: W represents the symbol for the element tungsten. The atomic number of tungsten is 74.
Titanium: Titanium (Ti) has an atomic number of 22.
The element in the 13 group of the 4th period: The element in the 13th group of the 4th period is aluminum (Al) with an atomic number of 13.
Now, let's add up the atomic numbers:
3 (Lithium-7) + 74 (W) + 22 (Titanium) + 13 (Aluminum) = 112
The total value obtained by adding up the atomic numbers of the given elements is 112.