Advertisements
Advertisements
Question
The electronic configurations of three elements X, Y and Z are as follows:
| X | 2, 4 |
| Y | 2, 7 |
| Z | 2, 1 |
(a) Which two elements will combine to form an ionic compound?
(b) Which two elements will react to form a covalent compound?
Give reasons for your choice.
Advertisements
Solution
(a) Elements Y and Z combine to form an ionic compound by transfer of one electron from Z to Y.
(b) Elements X and Y will react to form a covalent compound because atom X can react with 4 atoms of Y to share their one electron.
APPEARS IN
RELATED QUESTIONS
Explain why carbon forms compounds mainly by covalent bond.
How does graphite act as a lubricant?
Fill in the following blank with suitable word:
The form of carbon which is known as black lead is ...........
Give one example of a molecule containing a triple covalent bond.
Compare the properties of ionic compounds and covalent compounds.
Draw the electron-dot structure of a hydrogen chloride molecule.
Give the formulae of the chlorides of the elements X and Y having atomic numbers of 3 and 6 respectively. Will the properties of the two chlorides be similar or different? Explain your answer.
Explain the following:
polar covalent compounds electricity.
Draw all possile structural formulae of compound from their molecular formula given below.
C4H10
Explain the following:
Covalent compounds have low melting and boiling point.
State the type of bonding in the following molecule.
Water
Draw an electron dot diagram to show the formation of the following compound.
Magnesium chloride [ H=1, C=6, Mg=12, Cl=17].
Compound X consists of molecules.
Choose the letter corresponding to the correct answer from the options A, B, C and D given below:
X is likely to have a ______.
Explain the following:
Polar covalent compounds conduct electricity?
Number of valence electrons in a carbon atom is _______.
Give an example for each of the following statement
A compound in which two Covalent bonds are formed.
Discuss in brief about the properties of coordinate covalent compounds.
Which of the following is the formula of Butanoic acid?
Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of
The bond which is formed by the mutual sharing of electrons is called ______ bond.
