Atomic Structure and isotopes

Front

What is the definition of 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 do you calculate the number of neutrons in an isotope?

Back

To calculate the number of neutrons in an isotope, subtract the atomic number (number of protons) from the mass number.

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

What are protons and what is their charge?

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

What is the significance of the periodic table's arrangement?

Back

Elements in the periodic table are arranged by increasing atomic number, which reflects their properties and relationships.

Front

What is the relationship between atomic number and mass number?

Back

The atomic number is the number of protons, while the mass number is the sum of protons and neutrons; they are related but represent different properties.

Front

How does the number of protons affect an element's chemical properties?

Back

The number of protons determines the element's identity and its position in the periodic table, which influences its chemical behavior.

Front

What is the role of neutrons in an atom?

Back

Neutrons contribute to the mass of an atom and help stabilize the nucleus, but they do not affect the chemical properties.

Front

What is a chemical symbol and what does it represent?

Back

A chemical symbol is a one or two-letter notation used to represent an element on the periodic table.