Periodic Table Basics - Regents Chemistry

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 nonmetals?

Back

Elements that are typically poor conductors of heat and electricity, have high ionization energies and electronegativities, and tend to gain electrons in chemical reactions.

Front

What are metals?

Back

Elements that are good conductors of heat and electricity, have high melting and boiling points, and tend to lose electrons in chemical reactions.

Front

What is malleability?

Back

The ability of a substance to be hammered or pressed into thin sheets without breaking.

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What is the significance of Group 2 elements?

Back

They are known as alkaline earth metals and are characterized by having two valence electrons.

Front

What is a noble gas?

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Elements in Group 18 of the periodic table that are inert and do not readily react with other elements due to having a full valence shell.

Front

What is the atomic number?

Back

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

Front

What is the difference between an element and a compound?

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An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is ionization energy?

Back

The energy required to remove an electron from an atom or ion.