Size of Atoms and Ions
Trending Questions
Q. The wrong statement regarding transition metals among the following is:-
- Electrons enter the (n−1)d orbitals after the ns orbitals
- Atomic radii of transition metals increase rapidly with an increase in the atomic number because of poor sheilding of outer electrons by (n−1)d electrons
- Second and third transition series elements have nearly the same size
- The ionisation potential of 5d transition metals are much higher than those of 3d and 4d transition metals
Q. when a hydrogen sample in ground state is bombarded then what potential is required to accelerate electron so that first paschen line is emitte
Q. The correct order of ionic radii for Y3+, Eu3+, La3+, Lu3+
- La3+<Eu3+<Lu3+<Y3+
- Y3+<Lu3+<Eu3+<La3+
- Lu3+<Y3+<Eu3+<La3+
- Lu3+<Eu3+<La3+<Y3+
Q. Which graph represents the correct trend in atomic radii of transition elements?
Q. The correct statement(s) regarding electrons is/are (A) they are heavier than protons (B) energy of electrons are not quantized when they are out of nuclear attraction forces (C) the energy of ionized electrons has no negative value(D) they are the constituent particles of cathode rays
Q. How do atomic radius vary in a period and in a group? How do you explain the variation?
Q. One of the following metals forms a volatile carbonyl compound and this property is taken advantage for its extraction. This metal is
- Iron
- Nickel
- Cobalt
- Tungsten