Problem: Identify the element represented by each of the following symbols and give the number of protons and neutrons in each.Identify the element 3374 X.

We’re being asked to identify the element, number of protons and number of neutrons in ₃₃⁷⁴X.

An element can be represented as:

You can determine the identity of the element using its atomic number:

Atomic number (Z): 

• represents the identity of the element
• reveals the number of protons
• in a neutral element:

            # of protons = # of electrons

Mass number (A)

• reveals the number of protons and neutrons

            mass number = # of protons + # of neutrons

Given: ₃₃⁷⁴X