Complete the table by examining the arrangement of electrons before and after the chemical reaction during the formation of sodium chloride. Sodium Chlorine Before the chemical reaction After the chemical reaction Before the chemical reaction After the chemical reaction Electronic configuration Number of electrons Number of protons Charge

Sodium chloride is formed through ionic bonding. That is, it involves the transfer of electrons between sodium and chlorine atoms. Therefore, the given table can be completed as, Sodium Chlorine Before the chemical reaction After the chemical reaction Before the chemical reaction After the chemical reaction Electronic configuration 2 , 8 , 1 2 , 8 2 , 8 , 7 2 , 8 , 8 Number of electrons 11 10 17 18 Number of protons 11 11 17 17 Charge Charge less Positive charge Charge less Negative ion

Complete the table after examining the electron dot diagram given below. Magnesium Oxygen Before the chemical reaction After the chemical reaction Before the chemical reaction After the chemical reaction Electronic configuration Number of electrons Number of protons Charge

From the electronic configuration, it is clear that, the atomic number of magnesium is 12 and that of oxygen is 8 . They both react together to form an ionic compound MgO . Therefore, the given table can be completed as, Magnesium Oxygen Before the chemical reaction After the chemical reaction Before the chemical reaction After the chemical reaction Electronic configuration 2 , 8 , 2 2 , 8 2 , 6 2 , 8 Number of electrons 12 10 8 10 Number of protons 12 12 8 8 Charge Charge less Two positive charges Charge less Two negative charges

E M B I B E

Chemistry Standard IX Part 1>Chapter 2 - Chemical Bonding>Exercise 1>Q •

EASY

9th Kerala Board

IMPORTANT

Earn 100

How many electrons are there in the outermost shell of sodium atom?

Important Questions on Chemical Bonding

EASY

9th Kerala Board

IMPORTANT

Chemistry Standard IX Part 1>Chapter 2 - Chemical Bonding>Exercise 1>Q •

How many electrons are there in outermost shell of chlorine?

MEDIUM

9th Kerala Board

IMPORTANT

Chemistry Standard IX Part 1>Chapter 2 - Chemical Bonding>Exercise 1>Q •

How do chlorine and sodium attain stability?

HARD

9th Kerala Board

IMPORTANT

Chemistry Standard IX Part 1>Chapter 2 - Chemical Bonding>Exercise 1>Q •

Does any change happen to the charge of sodium and chlorine atoms after electron transfer process?

HARD

9th Kerala Board

IMPORTANT

Chemistry Standard IX Part 1>Chapter 2 - Chemical Bonding>Exercise 1>Q •

Complete the table by examining the arrangement of electrons before and after the chemical reaction during the formation of sodium chloride.

	Sodium		Chlorine
	Before the chemical reaction	After the chemical reaction	Before the chemical reaction	After the chemical reaction
Electronic configuration
Number of electrons
Number of protons
Charge

MEDIUM

9th Kerala Board

IMPORTANT

Chemistry Standard IX Part 1>Chapter 2 - Chemical Bonding>Exercise 1

During the formation of sodium chloride, which atom donated the electron? How many?

MEDIUM

9th Kerala Board

IMPORTANT

Chemistry Standard IX Part 1>Chapter 2 - Chemical Bonding>Exercise 1>Q •

During the formation of sodium chloride, which atom accepted the electron? Why?

MEDIUM

9th Kerala Board

IMPORTANT

Chemistry Standard IX Part 1>Chapter 2 - Chemical Bonding>Exercise 1>Q •

During the formation of sodium chloride, how are the atoms called after they get charged?

HARD

9th Kerala Board

IMPORTANT

Chemistry Standard IX Part 1>Chapter 2 - Chemical Bonding>Exercise 1

Complete the table after examining the electron dot diagram given below.

Question Image

	Magnesium		Oxygen
	Before the chemical reaction	After the chemical reaction	Before the chemical reaction	After the chemical reaction
Electronic configuration
Number of electrons
Number of protons
Charge

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