Alkali metals have a common oxidation state of +1.

The electron configuration of Magnesium (Mg) is 1s² 2s² 2p⁶ 3s².

The electron configuration of potassium (K) is 1s² 2s² 2p⁶ 3s¹.

The electron configuration of potassium (K) is 1s² 2s² 2p⁶ 3s¹.

The element with atomic number 12 is Magnesium (Mg) with the configuration 1s2 2s2 2p6 3s2.

The electron configuration of magnesium (Mg) is 1s² 2s² 2p⁶ 3s².

The electronic configuration of potassium (K) is 1s² 2s² 2p⁶ 3s¹.

The formula of the compound formed between magnesium and chlorine is MgCl2.

Magnesium reacts with oxygen to form magnesium oxide, which has the formula MgO.

The melting points of alkali metals generally decrease as you move down the group due to the increase in atomic size and decrease in metallic bonding strength.

The primary products of the reaction between magnesium and dilute hydrochloric acid are magnesium chloride (MgCl2) and hydrogen gas (H2).

Alkali metals have low ionization energy, which contributes to their high reactivity.

The reactivity of alkali metals increases down the group due to decreasing ionization energy.

Barium sulfate is primarily used as a contrast agent in X-ray imaging.

Calcium is primarily used in the production of cement.

Sodium bicarbonate is used in baking, medicine, and cleaning.

The atomic radius increases as you move down the group of alkali metals.

Ionization energy decreases as you move down the group in s-block elements due to increased atomic size.

Ionization energy decreases down the group for alkali metals.

S-block metals typically form ions with a charge of +2.

Beryllium (Be) is the least reactive alkaline earth metal.

Barium is the most reactive alkaline earth metal due to its larger atomic size and lower ionization energy.

Beryllium is the least reactive alkaline earth metal due to its high ionization energy.

Strontium is used in fireworks to produce a red color.

Strontium is used in fireworks to produce a red flame.

Strontium is used in fireworks to produce red colors.

NaCl is formed by sodium, which is an s-block element.

Sodium reacts with water to form sodium hydroxide (NaOH) and hydrogen gas.

Sodium (Na) is an s-block element as it is in Group 1 of the periodic table.

S-block elements have low electronegativity.