Page 61 - Science Class 07

Project
Project
Project ActivityActivityActivity
Project Activity
A. Complete the following table.

Compound Formula Elements and Their Atoms

Carbon Dioxide
Sulphuric Acid

Potassium Permanganate
Nitric Acid
Ammonia

Hydrochloric Acid
Aluminum Bromine

Phosphorous Pentoxide
Borax
Sugar

Copper Sulphate
Carbonic Acid

Sodium Hydroxide
Ammonium Chloride

B. LPG (Liquefied Petroleum Gas) is a gas in the form of liquid. Which physical and chemical
changes occur when it comes out of the cylinder and burns?

C. Periodic table of elements is given below.
Try to iden fy each element with the help of your teacher.

1 2
H He
3 4 5 6 7 8 9 10
Li Be B C N O F Ne
11 12 13 14 15 16 17 18
Na Mg Al Si P S Cl Ar
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
55 56 57-71 71 73 74 75 76 77 78 79 80 81 82 83 84 85 86
Cs Ba Hf Ta W Re Os Ir Pt Au Hg Ti Pb Bi Po At Rn
87 88 89-103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118
Fr Ra Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
57 58 59 60 61 62 63 64 65 66 67 68 69 70 71
La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
89 90 91 92 93 94 95 96 97 98 99 100 101 102 103
Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr

Science-7 61