Select the correct statements...

Select the correct statements

A simple harmonic motion is necessarily periodic

a simple harmonic motion is necessarily oscillatory

an oscillatory motion is necessrily periodic

a periodic motion is necessarily oscillatory

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Select the correct statement (s):

Lower value of quantum number l indicates that there is a higher probability of finding the 3s electron close to the nucleus than those of 3p and 3d electrons

energy of 3s orbital is less than for the 3p and 3d orbitals

At the node, the value of the radial function changes sign

The radial function depends upon the quantum numbers n and l

Select the correct statement(s):

An electron near the nucleus is more attracted by the nucleus and has a low potential energy

According to Bohr’s theory, an electron continuously radiate energy if it stays in one orbit

Bohr’s model could not explain the spectra of multielectron atoms

Bohr’s model was the first atomic model based on quantisation of energy

Select the correct statement(s)

The C.N. of cation occupying a tetrahedral hole is 4

The C.N. of catio occupying a octahedral hole is 6

In Schottky defects, density of the lattice decreases

In Frenkel defects, density of the lattice increases.