Advertisements
Advertisements
Question
A, B, C are three elements in which B is an inert gas other than helium.With this information complete the following table.
| Element | Atomic number | No. of electrons in the valence shell | Group to which the element belongs |
| A | Z - 1 | ||
| B | Z | ||
| C | Z + 1 |
Also, explain the following : Electron affinity of B is Zero.
Advertisements
Solution
| Element | Atomic number | No. of electrons in the valence shell | Group to which the element belongs |
| A | Z - 1 | ||
| B | Z | ||
| C | Z + 1 | 1 | 1 |
Since B is a noble gas element so its electron affinity is zero as its octet is complete.
APPEARS IN
RELATED QUESTIONS
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
Give reason:
Electron affinity of halogens is comparatively high ?
Explain the following:
Halogens have a high electron affinity.
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
Explain
Halogens have high electron affinity.
With reference to the variation of properties in the Periodic Table, which of the following is generally true?
Electron affinity increases going down a group.
Down the group, electron affinity ______.
Neon shows zero electron affinity due to ______.
Among period 2 elements A, B, C and D, the one which has highest electron affinity is ______.
