- (A) 224 – 84
- (B) 220 – 80
- (C) 222 – 86
- (D) 226 – 87
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- (A) Smaller
- (B) Greater than 82
- (C) Same
- (D) Sometimes smaller some times greater
- (A) Molecules
- (B) Ions
- (C) Elements
- (D) Isotopes
- (A) α-particle source
- (B) β-particle source
- (C) γ-rays source
- (D) Neutron source
- (A) Loses a small fraction of its energy
- (B) Losses most of its energy
- (C) Loses no energy at all
- (D) Loses all of its energy
- (A) X-rays
- (B) α-rays
- (C) β-rays
- (D) γ-rays
- (A) Through direct collision
- (B) Through electrostatic attraction
- (C) Through electrostatic repulsion
- (D) All of above
- (A) Plus one
- (B) Plus two
- (C) Minus two
- (D) Minus one
- (A) α-rays
- (B) β-rays
- (C) γ-rays
- (D) B and C have equal antiseptic propertie
- (A) Cobalt-60
- (B) Strontium-90
- (C) Carbon-14
- (D) Nickel-63
