Periodic Table Test Review

Front

What is an element?

Back

A collection of atoms of one type that cannot be broken down into simpler substances by ordinary chemical or physical means.

Front

What is the atomic number of an element?

Back

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

Front

What is a proton?

Back

A positively charged subatomic particle found in the nucleus of an atom.

Front

What is a neutron?

Back

A subatomic particle found in the nucleus of an atom that has no charge.

Front

What is an electron?

Back

A negatively charged subatomic particle that orbits the nucleus of an atom.

Front

What does it mean for elements to have similar chemical properties?

Back

Elements in the same group of the periodic table have similar chemical properties due to having the same number of valence electrons.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

How do you determine the number of protons, neutrons, and electrons in an atom?

Back

The number of protons is equal to the atomic number. The number of neutrons can be found by subtracting the atomic number from the atomic mass. The number of electrons is equal to the number of protons in a neutral atom.

Front

What is a group in the periodic table?

Back

A vertical column in the periodic table that contains elements with similar properties.

Front

What is a period in the periodic table?

Back

A horizontal row in the periodic table that indicates the number of electron shells in the elements.