Chemistry-
General
Easy
Question
Which one pair of atoms or ions will have same configuration.
- F+ and Ne
- Li+ and He–
- Cl– and Ar
- Na and K
The correct answer is: Cl– and Ar
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The electronic configuration of an element is1s2, 2s2,2p6,3s2,3p6,3d54s1. This represents its:
The electronic configuration of an element is1s2, 2s2,2p6,3s2,3p6,3d54s1. This represents its:
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Which of the following electronic configurations is not possible?
Which of the following electronic configurations is not possible?
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The number of unpaired electrons in Fe3+ (Z=26)are:
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An electron has kinetic energy2.8×10–23J. de-Broglie wavelength will be nearly: (m =9.1×10–31kg)
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The equation Δx.Δp≥
The equation Δx.Δp≥
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The energy required to dislodge electron from excited isolated H-atom,(E1=–13.6eV)is:
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The energy of a photon is calculated by:
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Highest energy will be absorbed to eject out the electron in the configuration:
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The mass of a neutron is of the order of-
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The minimum real charge on any partical which can exist is:
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Outer electronic configuration of the element of atomic number 24 is-
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Maximum magnetic moment will be shown by:
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On heating one end of a rod the temperature of the whole rod will be uniform when
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