Question

question 7
what do the letters in the center of each square on the periodic table represent?
the elements symbol
the type of bond it forms
the number of neutrons
the group number
question 8
what information can you find in the atomic mass of an element?
the elements location on the periodic table
we saved your progress a few seconds ago

Explanation:

The periodic table is a fundamental tool in chemistry. Each element is represented by a square. The letters in the center of each square are the element's symbol. For example, hydrogen is represented as H, oxygen as O. This is a standard convention in chemistry. The type of bond an element forms is not indicated by a single - letter or two - letter symbol in the center of the square. The number of neutrons is not directly shown by the symbol (it can be calculated using atomic mass and atomic number). The group number is usually indicated at the top of the group (column) in the periodic table, not in the center of each element's square.

Answer:

The element's symbol