Advertisements
Advertisements
Question
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Sodium chloride
Advertisements
Solution
Step 1: Write the symbols of the radicals.
Na Cl
Step 2: Write the valency below the respective radical.
Na Cl
1 1
Step 3: Cross-multiply symbols of radicals with their respective valency.
Step 4: Write down the chemical formula of the compound.

RELATED QUESTIONS
FILL IN THE BLANK
On reaction with sulphuric acid solution, barium chloride forms a white precipitate of ........ sulphate.
TRUE \ FALSE
Ammonia is a good oxidizing agent.
TRUE \ FALSE
Positively charged electrode is called the anode. True or false ?
Fill in the blank:
During a chemical reaction transfer of ________ takes place.
State the type of reactions for the following represent and balance the ones that are not balanced.
NaOH + HCl → NaCl + H2O
Distinguish by heating the following in dry test tubs.
Zinc nitrate and copper nitrate.
Give reason for the following:
Even though rusting is an exothermic reaction, the heat evolved when an iron nail rusts is unnoticeable.
Complete the table given below.
| Flame test for calcium chloride | Acid used for flame test |
Chemical change is a temporary change.
Classify the following processes into physical or chemical changes:
- Beating of aluminium metal to make aluminium foil.
- Digestion of food.
- Cutting of a log of wood into pieces.
- Burning of crackers.
