| 1 |
The ionization potential of K would be numerically equal to. |
Electron affinity of Ar
Electromagnetically of K
Electron affinity of K+
ionization energy of Ca
|
| 2 |
Which ionization Potential in the following equations involves the greatest amount of energy. |
Na = Na+ + e
K = K+ +e
C2+ = C3+ +e
Ca+ = Ca2+ + e
|
| 3 |
The decreasing order of the second ionization energies of K, Ca and Ba is |
K > Ca > Ba
Ca > Ba > K
Ba > K > Ca
K > Ba > Ca
|
| 4 |
Which of the following elements would have the lowest first ionization energy |
Mg
Rb
Li
Ca
|
| 5 |
In group 17, the element with highest first ionization enthalpy belongs to. |
Period 1
Period 2
Period 7
Period 6
|
| 6 |
In whihc period, the element with least ionization enthalpy belong to |
Group I
Group 2
Group 17
Group 18
|
| 7 |
Which of the following represents the correct order of ionic radii |
La+ < Na+ < K+ < Rb+
Li+ > Na + > K+ >Rb+
Li = Na + = K+ = Rb+
Rb +> Na+> K+ > Li+
|
| 8 |
Which of the following ions does not have the electronic configuration same as that of neon. |
F-
O2-
Na+
Ca2+
|
| 9 |
The size of iso electronic species - F- , Ne, and Na+ is affected by |
Nuclear charge (Z)
Valence principal quantum number (n)
Electron electron interaction in the outer orbital
None of the factors because their size to the same.
|
| 10 |
Which of the following ions is smallest in size. |
F-
Cl-
I-
Br-
|
| 11 |
The ions Sc3+ , Ca2+ and K+ have same electronic configuration as that of. |
Neon
Argon
Krypton
Xenon
|
| 12 |
Atomic volume of C, N, O and F are in the order |
C > N > F > O
C > N > O > F
F > O > N >C
N > C > O >F
|
| 13 |
The correct order of ionic radii for the following ions is. |
S<sup>2 </sup>- < P<sup>3-</sup> < Cl- < K+
Cl- > S2+ > P3- > k+
K+ > Cr > S2+ > P3-
P3+ > S2 > Cl - > K+
|
| 14 |
In graph of atomic volume versus atomic weight the elements corresponding to peaks in the curve belong to.
|
Group 1
Group 18
Group 4<div><br></div>
Group 14
|
| 15 |
An element with atomic number 20 is placed in which period of the periodic table. |
1
2
3
4
|
| 16 |
Which group contains elements that exist as monoatomic molecules. |
1
2
14
18
|
| 17 |
Elements in the same vertical group of the periodical have same |
Number of electron
Atomic number
Number of valence elections
Electronic configuration
|
| 18 |
In the long form of periodic table, elements are arranged according to. |
Increasing atomic number
Decreasing atomic number
Increasing atomic mass
Decreasing atomic mass
|
| 19 |
Lother Meyer plotted a graph showing variation of. |
Atomic volume with increase in atomic number
Atomic volume with increase in atomic weight
Atomic redii with increase in atomic weight.
Atomic weight which increase in atomic number
|
| 20 |
The law of trinds was proposed by |
Dobereiner
Newlands
Lother Mayer
Chancourtois
|
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