Atom, Elements, Periodic Table (Notes Comprehension)

Which of the following is a region of an atom? A) Core B) Nucleus C) Shell D) Orbit.

Fill in the blank: Electrons are found in the ______ of an atom.

Which of the following particles is smaller than an atom?

Fill in the blank: The charge of an oxygen atom is calculated as (+8) + (-8) = ____.

Fill in the blank: Atoms on the periodic table generally have a ____ charge.

Fill in the blank: An atom with a charge of (+1) + (-1) is ____.

What is the term for the mass number of an element as listed on the periodic table?

Which of the following is a unique identifier for each element on the periodic table?

Which of the following pieces of information is essential for identifying an element on the periodic table?

Elements in the same group have the same number of ______.