8. a) Write the electronic configuration for Na(atomic + 1) as per charge indica

Question

8. a) Write the electronic configuration for Na(atomic + 1) as per charge indicates. b) How many orbitals are there in a s sub-shell? In a p sub-shelt? In a d sub-sheltl? naf sub-shell? 9 a) Arrange the cations in order of increasing ionic radii Al3+Sr2+Rbk' b) Identify the following subshells from their quantum numbers. i) n-3, 1-2, ii) n= 3,1 = 1 10. A mixture of gas contains 4 moles of 02, 5 moles of N2, 2 moles of COp, The total partial is 12.1 atmosphere. What is the partial pressure of each gas. amount of oxygen gas with a volume of 5.00 ml at 1 atm, and 273 K was heated to 402 K and the pressure was doubled. What was the new volume of oxygen gas?

Explanation / Answer

8a)
Number of electron in Na = 11
Electronic configuration is 1s2 2s2 2p6 3s1
Since charge on Na is +1
So, we need to remove 1 electrons
Electrons are always removed from highest number orbital
Removing 1 electron from 3s
Final electronic configuration is : 1s2 2s2 2p6
Answer:
1s2 2s2 2p6

8b)
in s sub shell, there is 1 orbital
in p sub shell, there are 3 orbital
in d sub shell, there are 5 orbital
in f sub shell, there are 7 orbital

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