Flashcard Isotopes and Ions

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 does it mean for an atom to gain an electron?

Back

When an atom gains an electron, it becomes negatively charged and is called an anion.

Front

What does it mean for an atom to lose an electron?

Back

When an atom loses an electron, it becomes positively charged and is called a cation.

Front

What is the charge of a sodium ion (Na) after losing one electron?

Back

+1 charge (Na⁺¹)

Front

What is the charge of a sulfur ion (S) after gaining two electrons?

Back

-2 charge (S^-2)

Front

What are isotopes?

Back

Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons.

Front

What is the atomic mass number?

Back

The atomic mass number is the total number of protons and neutrons in an atom's nucleus.

Front

What is the difference between atomic number and atomic mass number?

Back

The atomic number is the number of protons in an atom, while the atomic mass number is the sum of protons and neutrons.

Front

What family does chlorine belong to in the periodic table?

Back

Chlorine belongs to the Halogen family.

Front

What is the common charge of a magnesium ion (Mg) after losing two electrons?

Back

+2 charge (Mg⁺²)