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Which of the following is true?

a)

The outer electronic configuration of the ground state chromium atom is

b)

Gamma rays are electromagnetic radiations of wavelengths of cm to cm

c)

The energy of the electron in the  orbital is less than that in the  orbital of a hydrogen atom

d)

The electron density in the -plane in  orbital is zero



Question ID - 101879 | SaraNextGen Top Answer

Which of the following is true?

a)

The outer electronic configuration of the ground state chromium atom is

b)

Gamma rays are electromagnetic radiations of wavelengths of cm to cm

c)

The energy of the electron in the  orbital is less than that in the  orbital of a hydrogen atom

d)

The electron density in the -plane in  orbital is zero

1 Answer
127 votes
Answer Key / Explanation : (c) -

(c)

1. False. The configuration is

2. False. The wavelength of gamma rays is of the order of m

3. True. In hydrogen atom, the energy of an electron depends only on the principal quantum number of the orbital which it occupies

False. In -plane, there is no electron density if an electron occupies  orbital

127 votes


127