Compounds Test - 1

Front

Which group of elements have 8 valence electrons?

Back

Noble Gases are the group of elements that have 8 valence electrons, making them stable and unreactive.

Front

What is the goal of the Lewis Dot Structure?

Back

The goal of the Lewis Dot Structure is to show the element's valence electrons and bonding capabilities.

Front

What is the chemical formula of dinitrogen tetroxide?

Back

The chemical formula of dinitrogen tetroxide is N₂O₄.

Front

What is the chemical formula for an ionic compound of lithium and oxygen?

Back

The chemical formula for an ionic compound of lithium and oxygen is Li₂O.

Front

How many valence electrons does Calcium (Ca) have?

Back

Calcium (Ca) has 2 valence electrons.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Front

Define ionic bond.

Back

An ionic bond is a type of chemical bond formed through the electrostatic attraction between oppositely charged ions.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of 8 electrons.

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond where two atoms share one or more pairs of electrons.

Front

What is the significance of the chemical formula?

Back

The chemical formula indicates the types and numbers of atoms in a compound.