Trend in Electron Affinity
Trending Questions
Which one of the following is the most electropositive element?
Magnesium
Sodium
Silicon
Aluminium
The element with the highest electron affinity among the halogens is
Which of the following will have the lowest electron affinity?
Carbon
Boron
Sulfur
Nitrogen
The electron affinity of Be is almost similar to that of?
Li
B
Na
Ne
A = 3.79 electron volts
B = 3.56 electron volts
Which of them will ionize more easily and why?
The element having very high ionization enthalpy but zero electron gain enthalpy is
H
He
F
Be
The electron affinity values for the halogens show the following trend ...
- F < Cl > Br > I
- F > Cl > Br > I
- F < Cl > Br < I
F < Cl < Br < I
Arrange the following as per the instructions given in the brackets:
Cs, Na, Li, K, Rb ( Increasing order of metallic character).
Which of the following trend shows the electron affinity values for the halogens?
F < Cl > Br < I
F > Cl > Br > I
F < Cl > Br > I
F < Cl < Br < I
The electron affinity increases on moving from left to right along a period. Arrange the reasons in a proper sequence.
(1) The amount of energy released during the addition of an electron increases from left to right along a period.
(2) Effective nuclear charge of the elements increases from left to right.
(3) The atomic size of the elements decreases from left to right.
(4) The tendency to gain electrons and form anion increases from left to right.
1324
3241
3142
4321
- Greater the nuclear charge, more negative is the electron gain enthalpy
- Nitrogen has positive electron gain enthalpy
- Electron gain enthalpy decreases from fluorine to iodine in the group
- Chlorine has highest electron gain enthalpy with negative sign
(i) Fluorine has higher electron affinity than chlorine.
(ii) Similar electronic configuration is repeated after intervals of 2, 8, 8, 18 and 32.
(iii) Al2O3 is an amphoteric oxide.
(iv) On moving horizontally across a period, number of valency electrons increases from one to eight.
(v) All members of zero group are non-metals.
(vi) The elements with higher electron affinity have higher ionization potential.
We have the number of outer shell valence electrons of 4 atoms. Which among them will have the least electron affinity?
Atom 1: 7
Atom 2: 2
Atom 3: 6
Atom 4: 3
ns2np2
ns2np3
ns2np5
ns2np4
Which of the following element has the greatest affinity among the halogens?
Br
I
F
Cl
- True
- False
The electron affinity values for the halogens show which of the following trend?
F < Cl < Br < I
F < Cl > Br > I
F > Cl > Br > I
F < Cl > Br < I
In nature, aluminium is found in the form of compounds while gold is found in free state. Give reason. [3 MARKS]
Define Electron affinity
- 4.0
- 3.5
- 2.8
- zero
- Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
- Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
- Assertion is correct but Reason is incorrect
- Both Assertion and Reason are incorrect
Nitrogen has lower electron affinity than its preceeding element carbon because
-
Electron affinity decreases along a period
-
Electron affinity generally increases along a period
-
Nitrogen atom has half filled p-orbital
-
Nitrogen is a p-block element
- NaCl
- CsF
- NaI
- K2S
- Br > F
- F > CI
- Br < CI
- F < I