question_answer 34)

Complete the following table.  

Atomic number	Mass number	Number of neutrons	Number of protons	Number of electrons	Name of the atomic species
9	-	10	-	-	-
16	32	-	-	-	Sulphur
-	23	-	12	-	-
-	2	-	1	-	-
-	1	0	1	0	-

   

Answer:

First Line : Mass number = Atomic number (9) + No. of neutrons (10) = 19 No. of protons = Atomic number = 9 No. of electrons = Atomic number =9 Name of the species = Fluorine (F) Second Line : No. of neutrons = Mass number (32) - Atomic number (16) = 16 No. of protons = Atomic number =16 No. of electrons = Atomic number =16 Third Line : Atomic number = No. of protons = 12 No. of neutrons = Mass number (24) - Atomic number (12) =12 No. of electrons = Atomic number =12 Name of the species = Magnesium (Mg) Fourth Line : Atomic number = No. of protons = 1 No. of neutrons = Mass number (2) - Atomic number (1) = 1 No. of electrons = Atomic number =1 Name of the species = Deuterium (D). Fifth Line : Atomic number = No. of protons = 1 No. of electrons = Atomic number = 1 Name of the species = Protium or Hydrogen (H)   The complete table can also be represented as :  

Atomic number	Mass number	Number of neutrons	Number of protons	Number of electrons	Name of the atomic species
9	19	10	9	9	Fluorine
16	32	16	16	16	Sulphur
12	24	12	12	12	Magnesium
1	2	1	1	1	Deuterium
1	1	0	1	0	Hydrogen