Practice: Use the Gizmo to create stable compounds from the combinations given below. After transferring electrons, arrange the atoms to demonstrate the attraction between positively charged ions and negatively charged ions. Click Check to check each compound. Write the chemical formula on a separate piece of paper and insert picture here.
Ionic charges
Chemical formula
A. Lithium and fluorine: Li
F
B. Beryllium and oxygen: Be
O
C. Magnesium and fluorine: Mg
F
D. Aluminum and chlorine: Al
Cl
E. Beryllium and nitrogen Be
N
Answers
Answer:
1. LiF
2.BeO
3. MgF
4. AlCl
5. BeN
Explanation:
These all are the chemical formula
of the given compounds
The formation of the compounds are shown below:
A. Lithium loses one electron to form Li⁺ and Fluorine gains one electron to form F⁻. The attraction between the negative and positive ions results in the formation of LiF.
B. Beryllium loses 2 electrons to form a Be²⁺ cation. The cation is stabilized by the O²⁻ anion. The compound thus formed is neutral and is called beryllium oxide.
C. Magnesium atoms lose 2 electrons to form Mg²⁺ and Fluorine forms F⁻ anion. To neutralize the +2 charge, 2 F⁻ ions are needed and thus Mg F₂ is formed.
D. Aluminium cation (Al³⁺) has 3 positive charges. It thus needs a -3 charge to get neutralized. 3 Cl⁻ anions are required for this.
E. Beryllium nitride is formed by the attraction between Be²⁺ cation and N³⁻ anion.
