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 Ahmed
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 amplitude
Submitted by :- Jamil Ahmed
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 :- Jamil Ahmed
Positive rays are produced__________________?
A. By burning of gas
B. By cooling of the gas
C. By the bombardment of cathode rays on gas molecules
D. From anode like cathode rays produced from cathode
Submitted by :- Jamil Ahmed