Question

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Which of the following increase as you proceed down a group in the periodic table? a) atomic radius b) ionization energy c) electron affinity d) electronegativity e all of the above 5. Which of the following could not be an orbital diagram for an atom in its ground state? 1s 2s 2p 3s a) (1) (TD (TD b) (1) (1) (1) (1) (1) (1) c) (1) (1) (1) (10 ) d) ( () (0(() () e) (1) (1) (0) (0) 6. Which bond should have the longest length? a) N-N b) NEN c) NEN d) All three bond lengths should be about the same. e) More information is needed. 7. Which atom will have the smallest atomic radius? a) Si b) S c) Se d) Ca e) Mg What does the value of represent in the quantum mechanical model of the atom? a) the circumference of the orbit of the electron b) the probability of finding the electron c) the square of the distance from the nudeus d) the kinetic energy of the electron e) none of the above 9. The size of an atomic orbital is associated with a) the principal quantum number(n) b) the angular momentum quantum number (1) the magnetic quantum number(m.) d) the spin quantum number (m)

Answer 1

4.(a) atomic radius ."as uh go down in the group the atomic radius of the elements will increase.

5.(c) option 'c' is not the orbital diagram of the atom in its ground state, because the filling of spins is not correct .

6.(a)N-N having longest length .

7.(b) S-sulphur has the shortest atomic radius .

As the atomic radius will decrease from left to right in the periodic table and increase from up to down in periodic table.

8.(b)the probability of finding the electron.

9.(a) the principal quantam number (n)