Introduction to Chemistry
What defines isotopes of the same element?
What does the atomic number (Z) of an element represent?
Where are electrons located in an atom?
An element has two isotopes: one with a mass number of 35 and 75% abundance, and another with a mass number of 37 and 25% abundance. What is the average atomic mass of the element?
Which of the following statements correctly differentiates a neutral atom from an ion?
