Ions and Isotopes

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

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

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 mass number of an atom?

Back

The mass number is calculated by adding the number of protons and neutrons in the nucleus.

Front

What are noble gases?

Back

Noble gases are a group of elements in Group 18 of the periodic table that are characterized by their lack of reactivity due to having full valence electron shells.

Front

What is the charge of a cation?

Back

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

Front

What is the charge of an anion?

Back

An anion is a negatively charged ion, formed when an atom gains one or more electrons.

Front

How many electrons does a neutral atom have?

Back

A neutral atom has the same number of electrons as protons.

Front

What is the significance of valence electrons?

Back

Valence electrons are the outermost electrons of an atom and are important for determining how an atom will bond with other atoms.

Front

What is the relationship between protons and neutrons in isotopes?

Back

Isotopes of an element have the same number of protons but different numbers of neutrons.