1.
Heavy isotopes are generally ___
2.
In Thomson’s model electrons are ___
3.
Which is an example of isomorphs?
4.
Isotopes differ in ___
5.
Line spectrum is used in
6.
Isotones have same ___
7.
¹⁴C, ¹⁵N, ¹⁶O are isotones because they all have ___ neutrons
8.
Isobars show different chemical properties because ___
9.
Isotopic effect is greater in ___
10.
Absorption spectrum consists of
11.
Absorption spectrum is formed when atoms
12.
Line spectra of elements are identical because of
13.
Isoelectronic species must have same ___
14.
In Thomson model, positive charge is ___
15.
Rutherford disproved Thomson because ___
16.
Isosters and isoelectronic species are ___
17.
Isobars differ in ___
18.
Thomson’s model describes atom as ___
19.
Isomorphs share same ___
20.
The missing wavelengths in a continuous spectrum represent
21.
Isotopes can be separated by ___
22.
Species with same number of atoms & electrons are ___
23.
Two elements can never have identical line spectra because they have different
24.
Species with same isotopic number belong to ___
25.
Isobars have same ___
26.
⁴⁰Ca and ⁴⁰Ar are ___
27.
Isodiaphers have same ___
28.
Heaviest isotopes are generally ___
29.
Emission and absorption lines of the same substance are found at
30.
Isoelectronic species must have same ___
31.
Emission spectrum of atoms in gaseous phase appears as
32.
A − 2Z constant defines ___
33.
Isotopes have same chemical properties because ___
36.
Isotopes have the same ___
37.
CN⁻, CO, N₂, NO⁺ have ___ electrons each
39.
Line spectrum consists of
40.
Example of isotopes of carbon
41.
Thomson’s model assumes mass is ___
42.
F¹⁹ and K³⁹ are isodiaphers because both have ___
43.
Thomson’s model was rejected by ___
44.
In isobars, the sum of ___ remains same
45.
Isoelectronic species have same number of ___
