The Periodic Table - 2019

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 the main groups of the periodic table?

Back

The main groups include: Group 1 (Alkali Metals), Group 2 (Alkaline Earth Metals), Groups 3-12 (Transition Metals), Group 13-16 (Post-transition Metals, Metalloids, Nonmetals), Group 17 (Halogens), and Group 18 (Noble Gases).

Front

What are valence electrons?

Back

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

Front

What is the significance of the atomic number?

Back

The atomic number represents the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What are noble gases?

Back

Noble gases are a group of chemical elements in Group 18 of the periodic table that are characterized by their lack of reactivity due to having a full valence shell.

Front

What is the difference between metals and nonmetals?

Back

Metals are typically shiny, good conductors of heat and electricity, and malleable, while nonmetals are usually dull, poor conductors, and brittle.

Front

What is a chemical symbol?

Back

A chemical symbol is a one or two-letter notation used to represent an element, derived from its English or Latin name.

Front

What is the role of transition metals?

Back

Transition metals are elements that have partially filled d orbitals and are known for their ability to form various oxidation states and colored compounds.

Front

What is the meaning of 'period' in the periodic table?

Back

A period is a horizontal row in the periodic table, indicating elements with the same number of electron shells.

Front

What are alkali metals?

Back

Alkali metals are highly reactive elements found in Group 1 of the periodic table, characterized by having one valence electron.