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Ionization energy of group: Why does Ionization energy of group IIA elements decrease from Be to Ra? A. As the atomic size increases from Be to Ra, the attraction between
why lanthanide series is called lanthanide?
Between a proton and electron in a hydrogen atom = 3.16 x 10 47 A 0
HOW TO CALCULATE TITRE FACTOR.
conclusion of the topic?
Classification of dyes according to their application Direct dyes: this type of dyes can be directly applied to the fiber, both vegetable and animal, by dipping in hot aqueo
The hydride ions H- are isoelectronic with: (1) Li (2) He + (3) He (4) Be Ans: He
The uncertainty in momentum of an electron is 1 x10 -5 kg- m/s . The uncertainty in its position will be (h= 6.62 x 10 -34 kg - m 2 / s): (1) 1.05 x 10- 28 m
Equivalent Weight
An atom with atomic number 20 is most likely to combine chemically with the atom whose atomic number is: (1) 11 (2) 14 (3) 16 (4) 10 An
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