Advertisements
Advertisements
प्रश्न
Choose the correct answer from the options given below:
If an element A belongs to Period 3 and Group II, then it will have
A. 3 shells and 2 valence electrons
B. 2 shells and 3 valence electrons
C. 3 shells and 3 valence electrons
D. 2 shells and 2 valence electrons
Advertisements
उत्तर
3 shells and 2 valence electrons
APPEARS IN
संबंधित प्रश्न
Draw an electron dot diagram to show the formation of the following compound:
Methane
[H = 1, C = 6]
Element X is a metal with a valency 2, Y is 3 non- metal with a valency 3.
1) Write an equation to show how Y from an ion.
2) If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.
Explain the following:
The reducing power of element increases down in the group while decreases in a period.
Arrange the elements of group 17 and group 1 according to the given conditions.
Increasing electron affinity
Why is the electron affinity of fluorine less than chlorine?
State whether the following statement is true or false
The elements with higher electron affinity have higher ionization potential.
Choose the correct answer:
Among the period 2 elements the one which has high electron affinity is
Arrange the following as per instruction given in the bracket.
Cl, F, Br, I (increasing electron affinity)
The electron affinity of an element X is greater than that of element Y.
- How is the oxidising power of X likely to compare with that of Y?
- How is the electronegativity of X likely to compare with that of Y?
- State whether X is likely to be placed to the left or to the right of Y in the periodic table?
