Question

Observe the table and answer any four from the question given below

NO PERIOD GROUP 1 GROUP2

1 2 A (3) E (4)

2 3 B(11) F (12)

3. 4 C (19) G (20)

4 5 D(37) H (38)


(a)What is the electronic configuration of F?

(i)2,8,1 (ii)2,8,2 (iii)2,8,3 (iv) 2,8,4


(b) What is the number of valence electrons in the atom of F?

(i) 2 (ii) 8 (iii) 7 (iv) 1


(c) what is the number of shells in the atom of F?

(i)3 (ii) 2 (iii) 8 (iv) 4


(d) Write the size of the atoms of E,F,G and H in decreasing order .

(i)H>G>F>E (ii) H>F>E>G

(iii)H>F>G>E (iv) E>F>G>H


(e) out of the three elements B,E and F which ine has the biggest atomic size?

(i) B (ii) E (iii) F (iv) G​

Answer 1

Answer:

2,8,2

Explanation:

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Answer 2

Answer:

(a) [1]. 2,8,1

(b) [4]. 1

(c) [1]. 3

(d) [1]. H>G>F>E