Science Review 10/25

What is the periodic table?

• A collection of mathematical formulas used in physics.
• A map of atoms and elements.

• A guide to the history of chemistry and its discoveries.
• A list of all known animals and their habitats.

What is the smallest whole unit of matter called?

• Element
• Compound
• Atom
• Molecule

What are the three subatomic particles?

• Protons, neutrons, and electrons
• Protons, neutrons, and photons
• Protons, electrons, and positrons
• Neutrons, electrons, and ions

What is it called when atoms combine?

• Atoms

• Molecules

• Chemicals

• Elements

Tags

NGSS.MS-PS1-1

What are the rows in a periodic table?

• Periods
• Groups
• Categories
• Blocks

What are the columns in a periodic table?

• Sections
• Periods
• Groups

• Rows

How many periods are in a periodic table?

• 5
• 10
• 12
• 7

How many groups are in a periodic table?

• 18
• 12
• 20
• 16

What are the three families of the periodic table?

• Halogens, Lanthanides, Actinides
• Metals, Nonmetals, Metalloids
• Alkali Earth Metals, Rare Earth Metals, Supermetals
• Noble Gases, Alkali Metals, Transition Metals

What does that atomic number tell you?

• The atomic number indicates the mass of an atom.
• The atomic number shows the number of electrons in an atom.
• The atomic number represents the chemical reactivity of an element.
• The atomic number tells you the number of protons in an atom.