SMCC_ChemistryMidterm_Review

Front

What is a d-block metal?

Back

D-block metals are transition metals found in groups 3 to 12 of the periodic table, characterized by the presence of d electrons. Example: Copper (Cu).

Front

Identify a metal, a non-metal, and a noble gas.

Back

Metal: Sodium (Na), Non-metal: Sulfur (S), Noble gas: Argon (Ar).

Front

What is the formula unit for magnesium chloride?

Back

The formula unit for magnesium chloride is MgCl₂.

Front

What type of alloy forms when smaller atoms fit into the spaces between larger atoms?

Back

This type of alloy is called an interstitial alloy.

Front

Which atom has 8 electrons in its Lewis Structure?

Back

Helium (He) has 8 electrons in its Lewis Structure.

Front

Define an alloy.

Back

An alloy is a mixture of two or more elements, where at least one is a metal, designed to enhance properties such as strength and resistance to corrosion.

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, leading to greater stability.

Front

What are transition metals?

Back

Transition metals are elements that have partially filled d orbitals and exhibit properties such as variable oxidation states and the ability to form colored compounds.

Front

Explain 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 Lewis structure?

Back

A Lewis structure is a diagram that represents the bonding between atoms in a molecule and the lone pairs of electrons that may exist.