Intro to Atoms Vocabulary Flashcard

Front

What is the definition of an atom?

Back

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

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 neutrally charged subatomic particle found in the nucleus of an atom.

Front

What is an electron?

Back

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

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

How do you calculate the atomic mass of an atom?

Back

The atomic mass (or mass number) is calculated by adding the number of protons and neutrons in the nucleus.

Front

What is the difference between atomic mass and atomic weight?

Back

Atomic mass is the mass of a specific isotope of an element, while atomic weight is the average mass of all isotopes of an element, weighted by their natural abundance.

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 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 role of electrons in chemical bonding?

Back

Electrons, particularly those in the outermost shell, are involved in forming chemical bonds between atoms.