-
mnsoomro
Posts
Electronic configuration of K is_________________?
A. [Ar]4s2 B. [Ar]4s1 C. [Kr]5s1 D. [He]2s1 Submitted by :- Jamil Ahmed
Space around nucleus where finding probability of electrons is maximum is called ____________________?
A. Orbital B. Orbit is elliptical C. subshell D. Electron cloud Submitted by :- Jamil Ahmed
Atom with higher atomic number produces X-rays of__________________?
A. Shorter wavelength B. Larger wavelength C. X-ray not produced D. All are possible Submitted by :- Jamil Ahmed
When electrons collide with heavy metals than ___________ are produced?
A. Beta-rays B. Alpha-rays C. X-rays D. Gamma-rays Submitted by :- Jamil Ahmed
Atomic orbits having same energy are called________________?
A. Degenerate orbitals B. Bonding molecular orbitals C. Anti bonding molecular orbitals D. Half filled orbitals Submitted by :- Jamil…
The correct electronic configuration of Cu is ___________________?
A. [Ar]4s1 B. [Ar]4s2 C. [Ar]3d14s1 D. [Ar]3d94s2 Submitted by :- Jamil Ahmed
Atom cannot be divided into simple units theorized by________________?
A. Rutherford B. Dalton C. Bohr D. Schrodinger Submitted by :- Jamil Ahmed
The velocity of the photon____________________?
A. Is independent of wavelength B. Depends upon source C. Depends upon its frequency D. Equals to the square of…
The relationship between energy of a photon of light and its frequency is given by________________?
A. de-Broglie duel nature of matter B. Bohr’s model C. Plancks Quantum theory D. Rutherford’s atomic model Submitted by :-…
Positive rays are produced__________________?
A. By burning of gas B. By cooling of the gas C. By the bombardment of cathode rays on gas…