Question
Which of these is N OT an alkali metal? Magnesium Sodium Lithium Francium
Answer
4.7
(106 Votes)
Morgan
Elite · Tutor for 8 years
Answer
Magnesium
Explanation
## Step 1: Identify the characteristics of alkali metals. Alkali metals are part of the 'Group 1' elements in the periodic table. They are soft, light, have low boiling and melting points, and carry a single positive charge in their ions. They contribute one electron to covalent bonds they form.## Step 2: Identify the alkali metals from the given options. The alkali metals include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).## Step 3: Compare the given options with the list of alkali metals. Sodium, Lithium, and Francium are all alkali metals. Magnesium, however, is not an alkali metal. It is a part of the 'Group 2' elements in the periodic table, known as alkaline earth metals.