Atomic structure

77%

An analytical chemist investigates a sample of element $Y$ , which has an atomic number of 20.

The mass spectrometer detects two distinct isotopes of this element: one with a mass number of 40 and another with a mass number of 44.

Explain, in terms of subatomic particles, what is meant by the term isotopes. Refer to element $Y$ in your answer.

[2]

Atomic structure Questions

77%

An analytical chemist investigates a sample of element $Y$ , which has an atomic number of 20.

The mass spectrometer detects two distinct isotopes of this element: one with a mass number of 40 and another with a mass number of 44.

Explain, in terms of subatomic particles, what is meant by the term isotopes. Refer to element $Y$ in your answer.

[2]