The atomic number tells the number of protons.
<span>Acetylene is a pure substance so it is homogeneous.</span>
Electrical<span> energy is produced by dry cell. Hope that helps.</span>
1. U₂₃₈→α→Th₂₃₄(UX₁)
<span>2. Th₂₂₈→α→Ra₂₂₆(MsTh₁) </span>
<span>α = Alpha decay (release of He Nucleus) </span>
<span>The decay products are meso states that undergo further (β) decay</span>
