Chemistry Advanced ECA- Cycle 3 Review

Front

What is the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons in order to have eight electrons in their valence shell, achieving a stable electron configuration.

Front

Which elements can exceed the octet rule?

Back

Elements in the 3rd row and below of the periodic table can sometimes exceed 8 electrons in their valence shell.

Front

What is the representative unit of a molecular compound?

Back

The representative unit of a molecular compound is a molecule.

Front

Which pair of elements is most likely to form a covalent compound?

Back

Carbon and oxygen are most likely to form a covalent compound.

Front

What is a binary acid?

Back

A binary acid is an acid composed of hydrogen and a nonmetal.

Front

What characterizes sodium fluoride (NaF)?

Back

Sodium fluoride has a high melting point and can conduct electricity in its molten state.

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed by the sharing of electron pairs between atoms.

Front

What is the difference between ionic and covalent compounds?

Back

Ionic compounds are formed by the transfer of electrons from one atom to another, while covalent compounds are formed by the sharing of electrons.

Front

What is a polyatomic ion?

Back

A polyatomic ion is a charged ion composed of two or more atoms bonded together.

Front

What is the significance of the periodic table in chemistry?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.