Year 9 Chemistry - Quiz 1 (Ions and Isotopes)

Carbon-12, Carbon-13 and Carbon-14 are all examples of...

• Anions

• Cations

• Ions

• Isotopes

Lithium usually has 3 electrons. How many electron shells does it have?

• One

• Two

• Three

• Four

If lithium loses the electron from its outermost shell, it gains a __________ charge.

• Positive

• Negative

• Neutral

An atom that has gained an electron is an example of a...

• Cation (positive ion)

• Anion (negative ion)

When sodium chloride (NaCl) are dissolved in solution, they split into Na+ and Cl- ions. The Cl- ions have a ______________ charge.

• Positive

• Negative

Which of the following solutions has an ionic charge?

• Tea

• Distilled water

• Magnesium chloride

• Sodium chloride

If an atom has 7 electrons in its outermost shell, it is more likely to __________ to become stable.

• Gain an electron.

• Lose an electron.

The most stable (non-reactive) atoms have...

• Only 1 electron in their outer shell.

• Only 7 electrons in their outer shell.

• A full outer shell.

If an atom has only 1 electron in its outer shell (with the exception of hydrogen), it is most likely to...

• Lose the electron.

• Gain an electron.

Isotopes have different numbers of...

• Protons

• Electrons

• Neutrons