isotope

Front

What happens by changing the number of neutrons in an atom?

Back

The atomic mass changes.

Front

How many protons does the isotope of titanium have?

Back

22 protons.

Front

How many neutrons does Fe-56 have?

Back

30 neutrons.

Front

What is the difference between Neon-20 and Neon-22?

Back

They have different numbers of neutrons.

Front

If X is the symbol for an element, which of the following two symbols represent isotopes of the same element? I. 77_35X II. 77_33X III. 81_37X IV. 81_35X

Back

I and IV represent isotopes of the same element.

Front

What defines an isotope of an element?

Back

Isotopes are variants of a 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.

Front

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

Back

Number of neutrons = Atomic mass - Atomic number.

Front

What is the significance of isotopes in medicine?

Back

Isotopes are used in medical imaging and treatment, such as radioactive iodine in thyroid treatment.

Front

Can isotopes have different chemical properties?

Back

No, isotopes of the same element have the same chemical properties because they have the same number of electrons.