How many neutrons are in a typical silicon atom? A. 15 B. 14 C. 28 D. 42

Chemistry · High School · Tue Nov 03 2020

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Determine the number of neutrons in a silicon atom.

In order to do so, we can use the periodic table of elements to check for the element Silicon.

Silicon has an atomic number of 14, and mass number of 28.

To find the number of neutrons in an element, we must take note some key points.

Atomic Number = Number of Protons

Number of Protons = Number of Electrons

Number of Neutrons = Mass Number  - Atomic Number/Number of Electrons/Number of Protons

Mass Number  = Number of Neutrons + Number of Electrons/Protons/Atomic Number

Since the atomic number and mass number is already given, we can directly used the formula for the Number of Neutrons.

Number of Neutrons = 28 - 14

Number of  Neutrons = 14

B. 14