Exam 22: The P-Block Elements

The binary compound formed when elemental boron is heated with excess oxygen is _____.

_____ is a finely divided form of carbon that is produced from the thermal decomposition of organic materials and used to purify gases and wastewater.

The valence electron configuration of helium is _____.

The alloys of _____ are used as low-melting solders in electronic circuit boards.

Elemental boron forms intricate structures that contain _____ bonds, in which a pair of electrons holds together three or more atoms.

Which of the following halogens do not form oxoacids when it reacts with water?

Nitrogen reacts with carbon at elevated temperatures to form _____.

The group 16 elements are collectively called the _____.

The most common oxidation state of group 14 elements is _____.

The balanced chemical equation for the hydrolysis of XeF₆ is _____.

Halogens are found in nature as free elements.

_____ is the only group 16 element that behaves like a metal.

The noble gases Kr, Xe, and Ar when arranged in the decreasing order of their ionization energies follow the order:

Which of the following oxides is amphoteric?

The Si-O bond is significantly stronger than the C-O bond.

Nitrogen reacts with hydrogen to form a binary compound _____, which is used as a rocket propellant and to inhibit corrosion in boilers.

_____ is the only pnicogen capable of forming multiple bonds with itself using π overlap of adjacent np orbitals.

The balanced chemical equation for the reaction of selenium with chlorine is _____.

Group 17 elements form compounds in odd oxidation states.

Noble gases are more likely to form compounds in negative oxidation states.