Unit 2 Exam Review

Front

What is a halogen?

Back

Halogens are a group of elements in Group 17 of the periodic table, known for their reactivity. Examples include fluorine, chlorine, bromine, iodine, and astatine.

Front

Which element is a halogen?

Back

Fluorine is a halogen.

Front

What is the common oxidation state of alkaline earth metals?

Back

The common oxidation state of alkaline earth metals is +2.

Front

What are alkaline earth metals?

Back

Alkaline earth metals are the elements in Group 2 of the periodic table, including beryllium, magnesium, calcium, strontium, barium, and radium.

Front

What is the atomic radius?

Back

The atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons.

Front

Which element has the largest atomic radius: lithium, oxygen, carbon, or beryllium?

Back

Lithium has the largest atomic radius among these elements.

Front

What is the Aufbau Principle?

Back

The Aufbau Principle states that electrons fill the lowest energy orbitals first before moving to higher energy orbitals.

Front

What are noble gases?

Back

Noble gases are elements in Group 18 of the periodic table, known for their lack of reactivity due to having a full valence shell. Examples include helium, neon, argon, krypton, xenon, and radon.

Front

What is an alkali metal?

Back

Alkali metals are the elements in Group 1 of the periodic table, known for their high reactivity and include lithium, sodium, potassium, rubidium, cesium, and francium.

Front

What is the significance of oxidation states?

Back

Oxidation states indicate the degree of oxidation of an atom in a compound, helping to understand how electrons are transferred in chemical reactions.