MP2: six weeks test AP CHEM

Front

What group of elements exhibits traits of both metals and nonmetals?

Back

Metalloids, such as B (Boron), Si (Silicon), As (Arsenic), and Sb (Antimony).

Front

Which compounds are typically non-polar?

Back

Compounds with symmetrical molecular geometry, such as carbon dioxide (CO2) and methane (CH4).

Front

What does the Periodic Law state about elements in the same group?

Back

Elements in the same group will have similar chemical and physical characteristics.

Front

What type of bond is characterized by a 'sea of electrons' that are free to move?

Back

Metallic bonds.

Front

Why does bromine have a greater electron affinity than iodine?

Back

There is a greater attraction between an added electron in Br than in I.

Front

What is the definition of electron affinity?

Back

Electron affinity is the amount of energy released when an electron is added to a neutral atom to form a negative ion.

Front

What are the characteristics of metals?

Back

Metals are typically shiny, malleable, ductile, and good conductors of heat and electricity.

Front

What are the characteristics of nonmetals?

Back

Nonmetals are typically dull, brittle, and poor conductors of heat and electricity.

Front

What is the significance of the octet rule in chemistry?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.

Front

What is a polar bond?

Back

A polar bond is a covalent bond between two atoms where the electrons are shared unequally, resulting in a dipole moment.