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AfilCa [17]
4 years ago
15

What element is added to toothpaste and city water systems to help tooth decay?

Chemistry
1 answer:
Ad libitum [116K]4 years ago
3 0
Answer is Fluorine.
Hope it helps and pls mark as the best answer. :-)
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\\ \rm\longmapsto Density=\dfrac{Mass}{Volume}

#2

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\\ \rm\longmapsto Mass=Density\times Volume

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The nuclear equation :

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<h3>Further explanation </h3>

Given

₈₂²¹⁴Pb

beta β ₋₁e⁰ particles

Required

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Solution

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The reaction

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The element X has

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In the periodic system, the element with atomic number 83=Bismuth

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