Ions & Isotopes (A)

Front

What are the three main subatomic particles of an atom and their respective charges?

Back

Protons (p+) have a positive charge, electrons (e-) have a negative charge, and neutrons (n0) have no charge.

Front

How do you calculate the number of neutrons in an isotope?

Back

Subtract the atomic number (number of protons) from the mass number.

Front

What is a cation?

Back

A cation is a positively charged ion, formed when an atom loses one or more electrons.

Front

Where are protons located in an atom?

Back

Protons are located inside the atomic nucleus.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in 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 does the number of electrons relate to the charge of an atom?

Back

If an atom has more electrons than protons, it is negatively charged (anion). If it has more protons than electrons, it is positively charged (cation).

Front

What is an isotope?

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Front

How many protons are in a Neon-22 isotope?

Back

Neon has an atomic number of 10, so Neon-22 has 10 protons.

Front

What is the significance of the mass number in isotopes?

Back

The mass number indicates the total number of protons and neutrons, which affects the stability and radioactive properties of the isotope.