practice\nfor each of the following, show compound formation (bonding) using lewis dot diagrams, give the…

practice\nfor each of the following, show compound formation (bonding) using lewis dot diagrams, give the chemical formula and name the compound.\npotassium and fluorine beryllium and chlorine magnesium and fluorine\naluminum and oxygen sodium and chlorine magnesium and oxygen
Answer
Explanation:
Potassium and Fluorine
Step1: Determine valence electrons
Potassium (K) has 1 valence - electron and Fluorine (F) has 7 valence - electrons. K loses its 1 valence electron to achieve a stable octet (like argon), and F gains that 1 electron to achieve a stable octet (like neon). K: $K\cdot$; F: $\ddot{F}\cdot$
Step2: Show electron transfer in Lewis dot diagram
$K\cdot+\cdot\ddot{F}\rightarrow K^++[\ddot{F}:]^-$
Step3: Write chemical formula and name
The chemical formula is KF, and the name is potassium fluoride.
Beryllium and Chlorine
Step1: Determine valence electrons
Beryllium (Be) has 2 valence - electrons and Chlorine (Cl) has 7 valence - electrons. Be loses its 2 valence electrons to achieve a stable configuration (like helium), and each Cl gains 1 electron. Be: $\cdot Be\cdot$; Cl: $\ddot{Cl}\cdot$
Step2: Show electron transfer in Lewis dot diagram
$\cdot Be\cdot + 2\cdot\ddot{Cl}\rightarrow Be^{2 +}+2[\ddot{Cl}:]^-$
Step3: Write chemical formula and name
The chemical formula is $BeCl_2$, and the name is beryllium chloride.
Magnesium and Fluorine
Step1: Determine valence electrons
Magnesium (Mg) has 2 valence - electrons and Fluorine (F) has 7 valence - electrons. Mg loses its 2 valence electrons to achieve a stable octet (like neon), and each F gains 1 electron. Mg: $\cdot Mg\cdot$; F: $\ddot{F}\cdot$
Step2: Show electron transfer in Lewis dot diagram
$\cdot Mg\cdot+2\cdot\ddot{F}\rightarrow Mg^{2 +}+2[\ddot{F}:]^-$
Step3: Write chemical formula and name
The chemical formula is $MgF_2$, and the name is magnesium fluoride.
Aluminum and Oxygen
Step1: Determine valence electrons
Aluminum (Al) has 3 valence - electrons and Oxygen (O) has 6 valence - electrons. Al loses 3 electrons to achieve a stable octet (like neon), and each O gains 2 electrons. Al: $\cdot Al\cdot$; O: $\ddot{O}\cdot$
Step2: Show electron transfer in Lewis dot diagram
$2\cdot Al\cdot + 3\cdot\ddot{O}\rightarrow 2Al^{3+}+3[\ddot{O}:]^{2 -}$
Step3: Write chemical formula and name
The chemical formula is $Al_2O_3$, and the name is aluminum oxide.
Sodium and Chlorine
Step1: Determine valence electrons
Sodium (Na) has 1 valence - electron and Chlorine (Cl) has 7 valence - electrons. Na loses its 1 valence electron to achieve a stable octet (like neon), and Cl gains that 1 electron to achieve a stable octet (like argon). Na: $Na\cdot$; Cl: $\ddot{Cl}\cdot$
Step2: Show electron transfer in Lewis dot diagram
$Na\cdot+\cdot\ddot{Cl}\rightarrow Na^++[\ddot{Cl}:]^-$
Step3: Write chemical formula and name
The chemical formula is NaCl, and the name is sodium chloride.
Magnesium and Oxygen
Step1: Determine valence electrons
Magnesium (Mg) has 2 valence - electrons and Oxygen (O) has 6 valence - electrons. Mg loses its 2 valence electrons to achieve a stable octet (like neon), and O gains 2 electrons. Mg: $\cdot Mg\cdot$; O: $\ddot{O}\cdot$
Step2: Show electron transfer in Lewis dot diagram
$\cdot Mg\cdot+\cdot\ddot{O}\rightarrow Mg^{2 +}+[\ddot{O}:]^{2 -}$
Step3: Write chemical formula and name
The chemical formula is MgO, and the name is magnesium oxide.
Answer:
| Pair of Elements | Lewis Dot Diagram (Electron - Transfer) | Chemical Formula | Name of Compound |
|---|---|---|---|
| Potassium and Fluorine | $K\cdot+\cdot\ddot{F}\rightarrow K^++[\ddot{F}:]^-$ | KF | Potassium fluoride |
| Beryllium and Chlorine | $\cdot Be\cdot + 2\cdot\ddot{Cl}\rightarrow Be^{2 +}+2[\ddot{Cl}:]^-$ | $BeCl_2$ | Beryllium chloride |
| Magnesium and Fluorine | $\cdot Mg\cdot+2\cdot\ddot{F}\rightarrow Mg^{2 +}+2[\ddot{F}:]^-$ | $MgF_2$ | Magnesium fluoride |
| Aluminum and Oxygen | $2\cdot Al\cdot + 3\cdot\ddot{O}\rightarrow 2Al^{3+}+3[\ddot{O}:]^{2 -}$ | $Al_2O_3$ | Aluminum oxide |
| Sodium and Chlorine | $Na\cdot+\cdot\ddot{Cl}\rightarrow Na^++[\ddot{Cl}:]^-$ | NaCl | Sodium chloride |
| Magnesium and Oxygen | $\cdot Mg\cdot+\cdot\ddot{O}\rightarrow Mg^{2 +}+[\ddot{O}:]^{2 -}$ | MgO | Magnesium oxide |