Atom, Elements, Periodic Table (Notes Comprehension)

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

• Core

• Nucleus

• Shell

• Orbit

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

• Nucleus

• Electron cloud

• Core

Which of the following particles is smaller than an atom?

• Molecule

• Subatomic particle

• Cell

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

• A) +8

• B) -8

• C) 0

• D) +16

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

• Positive

• Negative

• Neutral

• Variable

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

• A) Positively charged

• B) Negatively charged

• C) Neutral

• D) Unstable

Tags

NGSS.MS-PS2-3

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

• Atomic Number

• Element Symbol

• Atomic Mass

• Element Name

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

• Atomic Number

• Element Symbol

• Atomic Mass

• Element Name

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

• Atomic Number

• Element Symbol

• Atomic Mass

• Element Name

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

• Protons

• Neutrons

• Energy levels

• Electrons