Atoms and the Periodic Table

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of elements, organized by increasing atomic number and grouped by similar properties.

Front

What are groups in the periodic table?

Back

Groups are vertical columns in the periodic table that contain elements with similar chemical properties.

Front

What are periods in the periodic table?

Back

Periods are horizontal rows in the periodic table that indicate the number of electron shells in the elements.

Front

What are metals?

Back

Metals are elements that are typically shiny, good conductors of heat and electricity, and malleable.

Front

What are nonmetals?

Back

Nonmetals are elements that are generally poor conductors of heat and electricity and can be gases or brittle solids.

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals.

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons.

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom.