1 2 3 4 A 4 B 5 6 7 A 7 B 8 9 10 11 12 13 14 15 16 17 18 19 20

Lakhmir Singh & Manjit Kaur - Chemistry

Very Short Answer Type Questions-Pg-281

1 A 1 B 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Short Answer Type Questions-Pg-282

16 A 16 B 16 C 17 A 17 B 18 A 18 B 18 C 19 A 19 B 19 C 20 A 20 B 20 C 21 22 23 A 23 B 23 C 24 A 24 B 25 A 25 B 26 A 26 B

Long Answer Type Questions-Pg-283

27 A 27 B 27 C 27 D 27 E 28 A 28 B 28 C 28 D 28 E 29 A 29 B 29 C 29 D

Multiple Choice Questions (MCQs)-Pg-283

30 31 32 33 34 35 36 37 38 39 40 41

Questions Based on High Order Thinking Skills (HOTS)-Pg-284

42 43 44 45 46 47 48 49

Very Short Answer Type Questions-Pg-302

1 2 3 4 A 4 B 5 6 7 A 7 B 8 9 10 11 12 13 14 15 16 17 18 19 20

Short Answer Type Questions-Pg-303

21 22 23 A 23 B 24 A 24 B 25 A 25 B 26 A 26 B 27 A 27 B 28 A 28 B 29 A 29 B 30 A 30 B 31 A 31 B 32 A 32 B 33 A 33 B

Long Answer Type Questions-Pg-304

34 A 34 B 34 C 34 D 34 E 35 A 35 B 35 C 35 D 35 E 36 A 36 B 36 C 36 D 36 E

Multiple Choice Questions (MCQs)-Pg-305

37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56

Questions Based on High Order Thinking Skills (HOTS)-Pg-306

57 58 59 60 61 62 63 64 65 66 A 66 B 67 68 69 70 71 72 73 74 75 76 77 78 79 80

Q. 7 A5.0( 2 Votes )

What is the numbe

Class 10th Lakhmir Singh & Manjit Kaur - Chemistry 5. Periodic Classification of Elements

Answer :

One valence electron in the atoms of the first element in the period.

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