2024 Fall Final Exam Review III

Front

What is a halogen?

Back

A halogen is a member of group 17 of the periodic table, which includes elements like fluorine, chlorine, bromine, iodine, and astatine. They are known for being highly reactive, especially with alkali metals.

Front

What does the number at the bottom of each square on the periodic table represent?

Back

The number at the bottom of each square on the periodic table represents the atomic mass of the element, which is the weighted average mass of the isotopes of that element.

Front

What is another name for 'column' on the periodic table?

Back

Another name for 'column' on the periodic table is 'group'. Groups contain elements with similar chemical properties.

Front

What does the number at the top of each square on the periodic table represent?

Back

The number at the top of each square on the periodic table represents the atomic number of the element, which is the number of protons in the nucleus of an atom.

Front

Which group of the periodic table is composed of inert (not reactive) gases?

Back

The group of the periodic table composed of inert gases is called the 'noble gases'. This group includes helium, neon, argon, krypton, xenon, and radon.

Front

What are alkali metals?

Back

Alkali metals are the elements found in group 1 of the periodic table. They are highly reactive, especially with water, and include lithium, sodium, potassium, rubidium, cesium, and francium.

Front

What is the significance of the atomic number?

Back

The atomic number is significant because it determines the identity of an element. It indicates the number of protons in the nucleus and defines the element's position on the periodic table.

Front

What are alkaline earth metals?

Back

Alkaline earth metals are the elements in group 2 of the periodic table. They are less reactive than alkali metals and include beryllium, magnesium, calcium, strontium, barium, and radium.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

Front

What are noble gases used for?

Back

Noble gases are used in various applications, including lighting (neon lights), welding (argon), and as inert environments for chemical reactions due to their low reactivity.