Science 8 Review QT

Which agencies is responsible for adding and approving newly-discovered elements since 1947?

• IUPAT

• IUPAC

• IUPAP

• IUPUM

What do we call Lanthanides and Actinides?

Which among the following has a different value?

• Proton

• Electron

• Atomic Number

• Neutron

Condensation = solid to liquid

• True

• False

This change states that the identity of the substance remains the same and the process can be reversed.

• Chemical

• Physical

• Temporary

• Permanent

Which of the following is the term for Noble gases, Chalcogens, and Alkali metals?

• groups

• periods

• bonds

• families

What element is Sb

• Mercury

• Antimony

• Seaborgium

• Strontium

What is the atomic number of mercury?

What is the change called if solids turn to gas without changing into liquid?

Who suggested that all kinds of matter were made up of the four elements?

• Aristotle

• Boyle

• Democritus

• Paracelsus