Ch 5 Vocab Quiz

What is the periodic table?

• A list of chemical reactions

• An arrangement of elements in columns, based on a set of properties that repeat from row to row

• A chart of atomic numbers

• A table of chemical equations

What is a period in the periodic table?

• A column in the periodic table

• A group of metals

• A row in the periodic table

• A type of chemical bond

What is a group in the periodic table?

• A row in the periodic table

• A column in the periodic table

• A type of element

• A chemical reaction

What does atomic mass depend on?

• The number of protons

• The distribution of an element’s isotopes in nature and the masses of those isotopes

• The number of electrons

• The chemical reactivity

What is an atomic mass unit?

• One tenth of the mass of a carbon-12 atom

• One twelfth of the mass of a carbon-12 atom

• The mass of a hydrogen atom

• The mass of an electron

What are metals?

• Elements that are poor conductors of heat and electricity

• Elements that are good conductors of heat and electricity, mostly solids, malleable and ductile

• Elements that are gases at room temperature

• Elements that are non-reactive

What are nonmetals?

• Elements that are good conductors of heat and electricity

• Elements that are poor conductors of heat and electricity, mostly gases and brittle solids

• Elements that are shiny and malleable

• Elements that are highly reactive

What are metalloids?

• Elements with properties that fall between those of metals and nonmetals

• Elements that are entirely metallic

• Elements that are entirely nonmetallic

• Elements that are gases

What is a valence electron?

• An electron in the innermost energy level of an atom

• An electron in the highest occupied energy level of an atom

• An electron that is not involved in bonding

• An electron that is shared between atoms

What are alkali metals?

• Elements in Group 2A and are extremely reactive

• Elements in Group 1A and are extremely reactive

• Elements that are non-reactive

• Elements that are gases