Question

pease give the answer class 11
structure of atom chapter
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Answer 1

Answer:

Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).

Answer 2

Answer:

Since Time period = 2 x 10^-15

Since Time period = 2 x 10^-15Therefore Frequency = 1/Time period

Since Time period = 2 x 10^-15Therefore Frequency = 1/Time period = 1.5 x 10^15

Now.

C = frequency x wavelength

C = frequency x wavelengthWavelength = C/frequency

$\frac{3 \times {10}^{8} }{1.5 \times {10}^{15} } \\ = 2 \times {10}^{ - 7}$

Wavenumber = 1/ wavelength

$\frac{1}{2 \times {10}^{ - 7} } \\ = 1.5 \times {10}^{7}$

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