Compounds Test - 5

Front

What are Noble Gases?

Back

Noble Gases are a group of elements in Group 18 of the periodic table that have 8 valence electrons, making them very stable and unreactive.

Front

What is the chemical formula for Sodium Bromide?

Back

The chemical formula for Sodium Bromide is NaBr.

Front

How many valence electrons does an atom of sulfur (S) have?

Back

Sulfur (S) has 6 valence electrons.

Front

What is the name of the compound H2CO3?

Back

The name of the compound H2CO3 is Carbonic Acid.

Front

What is the electron configuration for Magnesium?

Back

The electron configuration for Magnesium is 1s² 2s² 2p⁶ 3s².

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

What is the significance of 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, leading to greater stability.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons between atoms.

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements chemically bond together.

Front

What is the formula for calculating the number of valence electrons in an element?

Back

The number of valence electrons can be determined by the group number of the element in the periodic table.