Exploring Atomic Structure

What is the smallest unit of matter?

• Quark

• Atom

• Electron

• Molecule

Define an atom.

• An atom is a form of energy.

• An atom is a type of molecule.

• An atom is the basic building block of matter.

• An atom is a large particle found in stars.

What are molecules made of?

• Molecules are made of cells.

• Molecules are made of elements.

• Molecules are made of atoms.

• Molecules are made of compounds.

How do atoms combine to form molecules?

• Atoms cannot combine to form molecules.

• Atoms only combine in solid states.

• Molecules are formed by physical changes in atoms.

• Atoms combine to form molecules through chemical bonds.

What is the charge of a proton?

• +2 elementary charge

• +1 elementary charge

• -1 elementary charge

• 0 elementary charge

Where are electrons located in an atom?

• Electrons are scattered randomly throughout the atom.

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

• Electrons are found in the nucleus of an atom.

• Electrons are located in the protons of an atom.

What is the difference between an atom and a molecule?

• Molecules are always larger than atoms and cannot be broken down.

• An atom is a single unit of an element, while a molecule is a group of two or more atoms bonded together.

• An atom is a group of molecules, while a molecule is a single element.

• Atoms can exist independently, but molecules cannot.

What is the atomic number of an element?

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

• The atomic number represents the mass of an element.

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

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

What particles are found in the nucleus of an atom?

• Quarks and leptons

• Photons and neutrinos

• Electrons and positrons

• Protons and neutrons

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

• Neutrons = Atomic Mass Number - Mass Number

• Neutrons = Atomic Number + 1

• Neutrons = Atomic Number + Atomic Mass Number

• Neutrons = Atomic Mass Number - Atomic Number