Periodic Table

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

Front

What are groups in the periodic table?

Back

Vertical columns in the periodic table that group elements with similar chemical properties.

Front

What are periods in the periodic table?

Back

Horizontal rows in the periodic table that indicate the number of electron shells in the elements.

Front

What is an atomic number?

Back

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

Front

What are noble gases?

Back

Elements in group 18 of the periodic table, known for their lack of reactivity due to having a full valence shell.

Front

What is the significance of valence electrons?

Back

Electrons in the outermost shell of an atom that determine its chemical properties and reactivity.

Front

Who is Moseley and what did he contribute to the periodic table?

Back

Henry Moseley arranged the periodic table by increasing atomic number, leading to the modern periodic law.

Front

What is the difference between metals and nonmetals?

Back

Metals are typically shiny, conductive, and malleable, while nonmetals are dull, insulative, and brittle.

Front

What is the location of Boron in the periodic table?

Back

Boron is located in group 13, period 2.

Front

What element is found in period 3 and group 2?

Back

Magnesium (Mg).