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AnnZ [28]
3 years ago
6

How many neutrona do Po 211 and Po 215 have?​

Chemistry
1 answer:
Fed [463]3 years ago
3 0

127 and 138

Explanation:

    Atomic representation:

               ²¹¹₈₄Po                     ²¹⁵₈₄Po

An atom is made up of protons, neutrons and electrons:

   The number of protons and neutrons makes up the mass number of an atom

The number of protons are the atomic number

     ²¹¹₈₄Po    

 211 is the mass number of polonium

  84 is the atomic number:

     Number of neutrons = Mass number - atomic number(number of protons)

    Number of neutrons = 211 - 84 = 127

For   ²¹⁵₈₄Po

  Number of neutrons = 215 - 84 = 138

Learn more:

Neutrons brainly.com/question/6837201

#learnwithBrainly

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Answer:

D) HCl(aq)

Explanation:

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In this scenario, the chemical formula which represents a homogeneous mixture is aqueous hydrogen chloride, HCl(aq). The aqueous hydrogen chloride is a homogeneous mixture of water and hydrogen chloride. This ultimately implies that, aqueous hydrogen chloride HCl(aq) is a solution of hydrogen chloride in water and it is commonly referred to as Hydrochloric acid.

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2 years ago
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hope this helps!
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