Structure of Atoms and the Periodic Table

Front

What is the atomic number of an element?

Back

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

Front

What is the structure of an atom?

Back

An atom consists of a nucleus containing protons and neutrons, surrounded by orbiting 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

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 atoms of the elements.

Front

What is an electron?

Back

An electron is a negatively charged subatomic particle that orbits the nucleus of an atom.

Front

What is a neutron?

Back

A neutron is a neutral subatomic particle found in the nucleus of an atom, contributing to its mass.

Front

What is a proton?

Back

A proton is a positively charged subatomic particle located in the nucleus of an atom.

Front

What does it mean for an atom to be mostly empty space?

Back

Most of an atom's volume is taken up by the space in which electrons orbit the nucleus, making it mostly empty.

Front

What is the element symbol for Strontium?

Back

The element symbol for Strontium is Sr.