Atoms and the Periodic Table

Front

What is an electron?

Back

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

Front

What particles are found in the nucleus of an atom?

Back

The nucleus of an atom contains protons and neutrons.

Front

What is the atomic number of an atom?

Back

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

Front

What does the Bohr model represent?

Back

The Bohr model represents an atom with electrons orbiting the nucleus in defined energy levels.

Front

How are elements ordered on the Periodic Table?

Back

Elements are ordered on the Periodic Table by their atomic number.

Front

What is a proton?

Back

A proton is a positively charged subatomic particle found in 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.

Front

What is the significance of the atomic mass?

Back

The atomic mass is the weighted average mass of an element's isotopes, reflecting the number of protons and neutrons.

Front

What is an isotope?

Back

An isotope is a variant of an element that has the same number of protons but a different number of neutrons.

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.