calculate the number protons, neutrons and electrons for K+, Cl-, and C

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Chemistry

calculate the number protons, neutrons and electrons for K+,Cl-, and C

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K+ ------- Number of protons = 19Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Number of protons is equal to atomic number of an element.

Â Â Â Â Â Â Â Â Â Â Â Â Â Number of netrons = 39-19 = 20Â Â Â Â Â Â Â Â Â Â Â Â Â Number of neutrons = mass number - atomic number

Â Â Â Â Â Â Â Â Â Â Â Â Number of electrons = 18 Number of electons is equal to atomic number when the atom is neutral.

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â but for cation, subtract the charge and for anion , add the charge to the atomic number.

Cl-Â Â Â Â Â Â Â Â Â = number of protons = 17

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â = number of neutrons = 35.5-17 = 18.5

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â = number of electrons = 18

C = number of protons = 6

Â Â Â = number of neutrons = 12-6 =6

= number of electrons= 6.

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