Question

apply hunds rule of maximum multiplicity to show the electronic configuration of N &O​

Answer 1

Explanation:

number on both dice is …………..

(A) 5

18

(B) 2

9

(C) 1

3

(D) 1

4

2. What are the coordinates of the point of intersection of the lines?

+ 3 = 7 2 + = −1?

(A) (2,-3) (B) (-2, 3) (C) (2, 3) (D) (-2,-3)

3. What is the nature of the root of the quadratic equation:42 − 8 + 9 = 0?

(A) Real (B) Not Real

(C) al (D)

4. The first term of an A.P is 2 and the nth term is 41. What is the value of n, if

Sn=860?

(A) 30 (B) 31 (C) 41 (D) 40

Q.1. B) Solve the following (1 mark each) 4 M

1. Find the value of the discriminant of the equation x

2 + 10x - 7 = 0

2. For simultaneous equations in variables x and y, Dx= 49, Dy= - 63, D = 7 then

what is x and y?

3.Three coins are tossed simultaneously. Write the sample space.

4. Find the next two terms of A.P 5, 12, 19, 26,…

Q.2. A) Complete 2 activities out of 3 (2 marks each) 4 M

1. Complete the activity.Q.1. A) Solve Multiple Choice questions (1 mark each) 4 M

1. If two dice are thrown simultaneously then the probability of getting a prime

number on both dice is …………..

(A) 5

18

(B) 2

9

(C) 1

3

(D) 1

4

2. What are the coordinates of the point of intersection of the lines?

+ 3 = 7 2 + = −1?

(A) (2,-3) (B) (-2, 3) (C) (2, 3) (D) (-2,-3)

3

Answer 2

Answer:

Hunds Rule of Maximum Multiplicity rule states that for a given electron configuration, the term with maximum multiplicity falls lowest in energy. According to this rule electron pairing in p, d and f orbitals cannot occur until each orbital of a given subshell contains one electron each or is singly occupied.

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