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The electronic configuration of an element is 1s2, 2s2 2p6 3s2 3p6 3d5 4s1 . This represents its:
(1) Excited state
(2) Ground state
(3)Cationic form
(4) Anionic form
Ans: Ground state
chemical prooperties of aldehydes?
Q. Describe properties and uses of different silicate glasses and also discuss the importance of annealing in the manufacture of glass.
Q. What do you mean by Descriptors? Descriptors are selected terms used to describe the sensory attributes of products and vary from one product to the other. The chosen descri
what is metallurgy
The number of radial nodes of 3s and 2p orbitals are respectively : (1) 2, 0 (2) 0, 2 (3) 1, 2 (4) 2, 1 Ans: 2, 0
names for : A , B , C , D , E , F ,..........., X , Y , Z .
Why do Zr and Hf show similar properties?
A polymer instance has chain of different type of lengths and hence its molecular mass is all the time expressed as an average on the other hand natural polymer like proteins consi
Rutherford's α particle scattering experiment proved that atom has: (1) Electrons (2 )Neutron (3) Nucleus (4 )Orbitals Ans: Nucleus
given: reciprocal linear dispersion= 2.5 nm/mm focal length = .30 m groove spacing = d = 833.3 nm wavelength = 400 nm
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