Exploring Atomic Structure

What is the smallest unit of an element?

• atom

• molecule

• compound

• ion

What are the three main subatomic particles?

• Quarks, Gluons, Neutrons

• Protons, Neutrons, Photons

• Protons, Neutrons, Electrons

• Electrons, Positrons, Neutrinos

What is the charge of a proton?

• +2 elementary charge

• +1 elementary charge

• 0 elementary charge

• -1 elementary charge

Where are electrons located in an atom?

• Electrons are found in the nucleus of an atom.

• Electrons are scattered randomly throughout the atom.

• Electrons are located in electron shells around the nucleus of an atom.

• Electrons are located in the protons of an atom.

What is the atomic number of an element?

• The atomic number of an element is the number of protons in its nucleus.

• The atomic number is the number of neutrons in the nucleus.

• The atomic number represents the mass of an element.

• The atomic number is the total number of electrons in an atom.

How do isotopes of an element differ?

• Isotopes differ in the number of protons and electrons.

• Isotopes have the same atomic mass but different chemical properties.

• Isotopes are only distinguished by their color and shape.

• Isotopes differ in the number of neutrons and atomic mass.

What is the mass number of an atom?

• The mass number is the total number of atoms in a molecule.

• The mass number is the number of electrons in an atom.

• The mass number is the sum of protons and neutrons in an atom.

• The mass number is the average weight of an atom in grams.

What is the role of neutrons in the nucleus?

• Neutrons determine the charge of the nucleus.

• Neutrons are involved in electron bonding.

• Neutrons help stabilize the nucleus and contribute to atomic mass.

• Neutrons are responsible for chemical reactions.

How do you determine the number of neutrons in an atom?

• Neutrons = Atomic Number + Atomic Mass Number

• Neutrons = Atomic Number + 1

• Neutrons = Atomic Mass Number - Mass Number

• Neutrons = Atomic Mass Number - Atomic Number

What is the significance of the electron configuration?

• It has no impact on chemical reactions.

• The significance of electron configuration lies in its role in determining the chemical properties and behavior of elements.

• It affects the physical appearance of elements.

• It determines the mass of an element.