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1. An atom of silicon has a mass number of 28 and an atomic number of 14. How many protons and how many neutrons are in this atom? Show your calculation.

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The atomic number is the number of protons meaning that there are 14 protons in an atom of silicon. The mass number is the sum of the protons and neutrons. 28 - 14 = 14. There are 14 protons and 14 neutrons in silicon. 

Atoms are the smallest indivisible units, which consists of neutrons, protons, and electrons. The silicon atom has mass number 28 and atomic number as 14.

Silicon or Si belong to the group 14 and period 3. Silicon is hard, brittle, and crystalline element. It is widely used to make polymers and glass.

  • Number of protons = Atomic number

The number of protons in silicon is 14.

Mass number = Number of protons + Number of neutrons

  • 28 = 14 + n
  • n = 28 - 14  
  • n = 14

Therefore, the number of protons and neutrons are 14 in Silicon.

To know more about Silicon, refer to the following link:

https://brainly.com/question/2136734?referrer=searchResults

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