PS Ch 5 Review

Front

A member of Group 3A, _____ is the most abundant metal in Earth's crust.

Back

Aluminium (or Aluminum) is the most abundant metal in Earth's crust.

Front

Mendeleev used the properties of elements located near the blank spaces in his table to predict properties for undiscovered elements. True or False?

Back

True. Mendeleev predicted properties of undiscovered elements based on the properties of nearby elements.

Front

Elements with properties that fall between those of metals and nonmetals are called _____.

Back

Metalloids are elements that have properties between metals and nonmetals.

Front

A ________ is an arrangement of elements in columns, based on a set of properties that repeat from row to row.

Back

Periodic table is the arrangement of elements based on repeating properties.

Front

Elements that belong to this group are colorless and odorless gases and are extremely unreactive. What is this group called?

Back

Noble gases are colorless, odorless, and extremely unreactive.

Front

What is the term for the vertical columns in the periodic table?

Back

Groups are the vertical columns in the periodic table.

Front

What do we call the horizontal rows in the periodic table?

Back

Periods are the horizontal rows in the periodic table.

Front

Which group of elements is known for having one electron in their outermost shell and being highly reactive?

Back

Alkali metals have one electron in their outermost shell and are highly reactive.

Front

What are the elements in Group 17 of the periodic table known as?

Back

Halogens are the elements in Group 17 of the periodic table.

Front

What is the significance of the atomic number of an element?

Back

The atomic number represents the number of protons in the nucleus of an atom and determines the element's identity.