Match the atom with the appropriate description. Potential Matches: 1 : Aluminum

Question

Match the atom with the appropriate description.
Potential Matches: 1 : Aluminum (Al) 2 : Sulfur (S) 3 : Magnesium (Mg) 4 : Phosphorus (P) 5 : Chlorine (Cl)     Answer      : An atom, which has a mass number of 24, with 12 neutrons      : An atom, which has a mass number of 27, with 14 neutrons      : An atom, which has a mass number of 31, with 16 neutrons      : An atom, which has a mass number of 32, with 16 neutrons      : An atom, which has a mass number of 35, with 18 neutrons Match the atom with the appropriate description.

Explanation / Answer

1 : Aluminum (Al) : An atom, which has a mass number of 27, with 14 neutrons

Al atomic number = 13 = number of protons

mass number = number of protons + number of neutrons

27 = 13 + number of neutrons

number of neutrons = 24-13 = 14

2 : Sulfur (S)    : An atom, which has a mass number of 32, with 16 neutrons

atomic number of S = 16 = number of protons

same calculations as above

3 : Magnesium (Mg)   : An atom, which has a mass number of 24, with 12 neutrons

Mg atomic number = 12 = number of protons

4 : Phosphorus (P)     : An atom, which has a mass number of 31, with 16 neutrons

P atomic number = 15 = number of protons

5 : Chlorine (Cl)   : An atom, which has a mass number of 35, with 18 neutrons

Cl atomic number = 17 = number of protons

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