helium, Chemistry

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atomic radius and compared its atomic radius to the other radiuss in its group

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The quantum number n2 which produces this transition, The frequency of one ...

The frequency of one of the lines in Paschen series of hydrogen atom is2.340x10 11 Hz. The quantum number n 2 which produces this transition is: (1) 6               (2) 5

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Q. Show Anomalous Behaviour of Oxygen? Oxygen differs considerably from the rest of the family members. Small size, very high electronegativity and non-availability of d-orbita

Chemical change in matter, A chemical change takes place when one or more...

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Visible range of hydrogen spectrum will contain, Visible range of hydrogen ...

Visible range of hydrogen spectrum will contain the following series: (1)  Pfund (2) Lyman (3) Balmer (4) Brackett Ans: Balmer

The electronic configuration of four elements, The electronic configuration...

The electronic configuration of four elements are given in brackets:  L (1s 2 , 2s 2 , 2p 1 , ) M (1s 1 , 2s 2 , 2p 5 ) Q (1s 2, 2s 2 , 2p 6 3s 1 ,) R ( 1s 1 , 2s 2 , 2p

Theories of indicator, Ask question in explain that #Minimum 100 words acc...

Ask question in explain that #Minimum 100 words accepted#

Physical properties of malonic acid, Physical Properties of Malonic Acid ...

Physical Properties of Malonic Acid (a) Malonic Acid is a white crystalline solid. (b) Malonic Acid's melting point is 135°C. (c) Malonic Acid is soluble in water and alc

P-orbitals of an atom in presence of magnetic, p-orbitals of an atom in pre...

p-orbitals of an atom in presence of magnetic field are: (1)  Two fold degenerate (2) Non degenerate (3) Three fold degenerate (4) None of these Ans: Non degenerate

Electron, electron partic;e moving as awave

electron partic;e moving as awave

acceptor ligands -p (pi), Most ligands have a nonbonding electron pair tha...

Most ligands have a nonbonding electron pair that may react as a donor to empty orbitals on the metal atom. In ligands known as π acids or π acceptors a donor-acceptor communic

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