For the Paschen series the values of n1 and n2 in the expression
n1= 1, n2 = 2, 3, 4, ...
n1= 2, n2 = 3, 4, 5,...
n1= 3, n2 = 4,5,6,...
n1= 4, n2 = 5,6,7,...
In Sommerfeld's modification of Bohr's theory, the trajectory of an electron in a hydrogen atom is
a perfect ellipse
a closed ellipse-like curve, narrower at the perihelion position and flatter at the aphelion position
a closed loop on spherical surface
a rosette
C.
a closed loop on spherical surface
In Sommerfeld's modification of Bohr's theory, the trajectory of an electron in a hydrogen atom is a closed loop on spherical surface.
If a species has 16 protons, 18 electrons and 16 neutrons, find the species and its charge.
S1-
Si2-
P3-
S2-
The number of electron and neturons of an element is 18 and 20 respectively. Its mass number is
2
17
37
38
Wave nature of electrons was demonstrated by :
Schrodinger
de-Broglie
Davisson and Garmer
Heisenberg
4d, 5p, 5f and 6p orbitals are arranged in the order of decreasing energy. The correct option is:
6p > 5f > 5p > 4d
6p > 5f > 4d > 5p
5f > 6p > 4d > 5p
5f > 6p > 5p > 4d