Atoms Quiz

What is the smallest unit of an element that retains the chemical properties of that element?

• ion

• atom

• molecule

• compound

What are the three subatomic particles that make up an atom?

• electrons, photons, and neutrinos

• protons, neutrons, and electrons

• protons, neutrons, and positrons

• protons, electrons, and quarks

Which subatomic particle has a positive charge?

• proton

• photon

• neutron

• electron

Which subatomic particle has a negative charge?

• proton

• positron

• electron

• neutron

Which subatomic particle has no charge?

• proton

• electron

• positron

• neutron

What is the atomic number of an element?

• The atomic number of an element is the number of neutrons in the nucleus of an atom.

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

• The atomic number of an element is the number of protons and neutrons in the nucleus of an atom.

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

What is the atomic mass of an element?

• The atomic mass of an element is the average mass of the atoms in a sample of that element.

• The atomic mass of an element is the mass of the most common isotope of that element.

• The atomic mass of an element is the number of protons in the nucleus of an atom of that element.

• The atomic mass of an element is the total mass of all the atoms in a sample of that element.

What is the periodic table?

• A tabular arrangement of chemical elements.

• A chart showing the phases of the moon.

• A diagram of the human body's organs.

• A list of common household items.

What do the columns in the periodic table tell you?

• How Many Protons the Elements have

• How Many Electron Shells the elements have

• How many valence electrons the elements have

• How many neutrons the elements have

What do the rows in the periodic table tell you?

• How Many Protons the Elements have

• How Many Electron Shells the elements have

• How many valence electrons the elements have

• How many neutrons the elements have