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When the atomic number Z of the nucleus ...

When the atomic number Z of the nucleus increases

A

initially the neutron-proton ratio is constatn - 1

B

initially neutron-porton ratio increases and later decrease

C

initially binding energy per nucleon increases and later decreases

D

the binding energy per nucleon increases when the neutron-proton ratio increases

Text Solution

Verified by Experts

The correct Answer is:
A, C
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Knowledge Check

  • E_(n)=-(2,18times10^(-18))(Z^(2))/(n^(2)) Electrons follow paths, called orbits around the nucleus of an atom. According to the Bohr model, the energy in joules of an atom's nth orbit containing a single electron is given by the formula shown above, where Z is the atomic number of the atom and n is the orbit number. Which of the following equations gives the atomic number of an atom given the energy of its nth orbit (assuming there is a single electron is that orbit)?

    A
    `Z=10^(9)sqrt((-n^(2)E_(n))/(2.18))`
    B
    `Z=(1)/(10^(9))sqrt((-n^(2)E_(n))/(2.18))`
    C
    `Z=10^(9)sqrt((-2.18E_(n))/(n^(2)))`
    D
    `Z=(1)/(10^(9))sqrt((-2.18E_(n))/(n^(2)))`

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