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

Which of the following is heavier: Cl-37 or Cl-35?

Back

Cl-37 is heavier than Cl-35.

Front

What is the charge of a proton?

Back

The charge of a proton is positive.

Front

What is the charge of an electron?

Back

The charge of an electron is negative.

Front

What is the main difference between isotopes of the same element?

Back

The main difference is the number 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.

Front

How do you determine the mass number of an atom?

Back

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

Front

What is a cation?

Back

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

Front

What is an anion?

Back

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