Periodic Table Review

Front

What is the periodic table?

Back

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

Tags

NGSS.HS-PS1-1

Front

What are groups in the periodic table?

Back

Vertical columns in the periodic table that contain 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 element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means, consisting of atoms with the same number of protons.

Front

What is atomic number?

Back

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

Front

What is the significance of group 18 elements?

Back

Group 18 elements, known as noble gases, are characterized by their lack of reactivity due to having a full valence shell.

Front

What is the relationship between protons and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus of an atom.

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 an isotope?

Back

Atoms of the same element that have the same number of protons but different numbers of neutrons.

Tags

NGSS.HS-PS1-8