Question

for each of the following elements, draw lewis dot diagrams and arrows to show the transfer of electrons. then, write the chemical formula and name for the compound. 1) sodium + chlorine 2) potassium + iodine formula: ____ name: __ formula: __ name: __ 3) magnesium + oxygen 4) calcium + sulfur formula: __ name: __ formula: __ name: __ 5) calcium + chlorine 6) magnesium + fluorine formula: __ name: __ formula: __ name: ____

Explanation:

1) Sodium + Chlorine (Correction)

Step1: Determine ion charges

Sodium (Na) loses 1 electron: \( \text{Na}
ightarrow \text{Na}^+ + e^- \)
Chlorine (Cl) gains 1 electron: \( \text{Cl} + e^-
ightarrow \text{Cl}^- \)

Step2: Balance charges for formula

1 \( \text{Na}^+ \) and 1 \( \text{Cl}^- \) balance, so formula is \( \text{NaCl} \).

Step3: Name the compound

Ionic compound: cation (sodium) + anion (chloride, from chlorine). Name: Sodium Chloride.

2) Potassium + Iodine (Correction)

Step1: Determine ion charges

Potassium (K) loses 1 electron: \( \text{K}
ightarrow \text{K}^+ + e^- \)
Iodine (I) gains 1 electron: \( \text{I} + e^-
ightarrow \text{I}^- \)

Step2: Balance charges for formula

1 \( \text{K}^+ \) and 1 \( \text{I}^- \) balance, so formula is \( \text{KI} \).

Step3: Name the compound

Ionic compound: cation (potassium) + anion (iodide, from iodine). Name: Potassium Iodide.

3) Magnesium + Oxygen

Step1: Determine ion charges

Magnesium (Mg) loses 2 electrons: \( \text{Mg}
ightarrow \text{Mg}^{2+} + 2e^- \)
Oxygen (O) gains 2 electrons: \( \text{O} + 2e^-
ightarrow \text{O}^{2-} \)

Step2: Balance charges for formula

1 \( \text{Mg}^{2+} \) and 1 \( \text{O}^{2-} \) balance, so formula is \( \text{MgO} \).

Step3: Name the compound

Ionic compound: cation (magnesium) + anion (oxide, from oxygen). Name: Magnesium Oxide.

4) Calcium + Sulfur

Answer:

s (Corrected/Completed):

1. Formula: \( \boldsymbol{\text{NaCl}} \); Name: Sodium Chloride
2. Formula: \( \boldsymbol{\text{KI}} \); Name: Potassium Iodide
3. Formula: \( \boldsymbol{\text{MgO}} \); Name: Magnesium Oxide
4. Formula: \( \boldsymbol{\text{CaS}} \); Name: Calcium Sulfide
5. Formula: \( \boldsymbol{\text{CaCl}_2} \); Name: Calcium Chloride
6. Formula: \( \boldsymbol{\text{MgF}_2} \); Name: Magnesium Fluoride