1.
The missing wavelengths in a continuous spectrum represent
2.
¹⁴C, ¹⁵N, ¹⁶O are isotones because they all have ___ neutrons
3.
Species with same isotopic number belong to ___
4.
Isotopes can be separated by ___
5.
Isosters and isoelectronic species are ___
7.
A − 2Z constant defines ___
8.
Line spectra of elements are identical because of
9.
CN⁻, CO, N₂, NO⁺ have ___ electrons each
10.
Thomson’s model was rejected by ___
12.
In Thomson’s model electrons are ___
13.
⁴⁰Ca and ⁴⁰Ar are ___
14.
Emission spectrum of atoms in gaseous phase appears as
15.
Line spectrum consists of
16.
In isobars, the sum of ___ remains same
17.
Example of isotopes of carbon
18.
Isobars have same ___
19.
Absorption spectrum is formed when atoms
20.
Species with same number of atoms & electrons are ___
21.
Heaviest isotopes are generally ___
22.
Thomson’s model describes atom as ___
23.
Two elements can never have identical line spectra because they have different
24.
Rutherford disproved Thomson because ___
25.
Isoelectronic species must have same ___
27.
Isotones have same ___
28.
Line spectrum is used in
29.
Isotopes have same chemical properties because ___
30.
Which is an example of isomorphs?
31.
Thomson’s model assumes mass is ___
32.
Isotopic effect is greater in ___
33.
Emission and absorption lines of the same substance are found at
34.
In Thomson model, positive charge is ___
35.
Isoelectronic species must have same ___
36.
Isobars show different chemical properties because ___
37.
Isodiaphers have same ___
38.
Heavy isotopes are generally ___
39.
Isotopes have the same ___
40.
Absorption spectrum consists of
41.
Isomorphs share same ___
42.
Isoelectronic species have same number of ___
43.
F¹⁹ and K³⁹ are isodiaphers because both have ___
44.
Isotopes differ in ___
45.
Isobars differ in ___
