2.1 Isotope 4th

Front

What is an isotope?

Back

An isotope is a variant of a chemical element that has the same number of protons but a different number of neutrons, resulting in a different mass number.

Front

How do you determine the mass number of an isotope?

Back

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

Front

What is the isotope symbol format?

Back

The isotope symbol is written as A/Z Element, where A is the mass number, Z is the atomic number, and 'Element' is the chemical symbol.

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 many protons does Calcium (Ca) have?

Back

Calcium has 20 protons.

Front

What is the mass number of Chlorine-33?

Back

The mass number of Chlorine-33 is 33.

Front

What do isotopes of the same element have in common?

Back

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

Front

What is the difference between isotopes and ions?

Back

Isotopes differ in the number of neutrons, while ions differ in the number of electrons, resulting in a charge.

Front

How many neutrons are in Iodine-153?

Back

Iodine-153 has 153 - 53 = 100 neutrons.

Front

What is the significance of isotopes in medicine?

Back

Isotopes are used in medicine for diagnostic imaging and treatment, such as radioactive iodine in thyroid treatment.