Question

element symbol atomic # mass # # of protons # of neutrons # of electrons hydrogen h 1 1 1 0 1 helium he 2 4 2 2 2 lithium li 3 6 sodium na 11 23 11 12 11 oxygen o 8 16 nitrogen n 7 14 silver ag 47 108 cobalt co 27 59 argon ar 18 40 zinc zn 30 66

Explanation:

Step1: Recall atomic - structure relationships

The atomic number is equal to the number of protons and for a neutral atom, the number of electrons is equal to the number of protons. The number of neutrons is calculated as Mass number - Atomic number.

Step2: Calculate for Lithium

Atomic number of Lithium is 3, so number of protons = 3. For a neutral atom, number of electrons = 3. Number of neutrons = Mass number - Atomic number = 6 - 3=3.

Step3: Calculate for Oxygen

Atomic number of Oxygen is 8, so number of protons = 8. For a neutral atom, number of electrons = 8. Number of neutrons = Mass number - Atomic number = 16 - 8 = 8.

Step4: Calculate for Nitrogen

Atomic number of Nitrogen is 7, so number of protons = 7. For a neutral atom, number of electrons = 7. Number of neutrons = Mass number - Atomic number = 14 - 7 = 7.

Step5: Calculate for Silver

Atomic number of Silver is 47, so number of protons = 47. For a neutral atom, number of electrons = 47. Number of neutrons = Mass number - Atomic number = 108 - 47 = 61.

Step6: Calculate for Cobalt

Atomic number of Cobalt is 27, so number of protons = 27. For a neutral atom, number of electrons = 27. Number of neutrons = Mass number - Atomic number = 59 - 27 = 32.

Step7: Calculate for Argon

Atomic number of Argon is 18, so number of protons = 18. For a neutral atom, number of electrons = 18. Number of neutrons = Mass number - Atomic number = 40 - 18 = 22.

Step8: Calculate for Zinc

Atomic number of Zinc is 30, so number of protons = 30. For a neutral atom, number of electrons = 30. Number of neutrons = Mass number - Atomic number = 66 - 30 = 36.

Answer:

Element	Symbol	Atomic #	Mass #	# of Protons	# of Neutrons	# of Electrons
Helium	He	2	4	2	2	2
Lithium	Li	3	6	3	3	3
Sodium	Na	11	23	11	12	11
Oxygen	O	8	16	8	8	8
Nitrogen	N	7	14	7	7	7
Silver	Ag	47	108	47	61	47
Cobalt	Co	27	59	27	32	27
Argon	Ar	18	40	18	22	18
Zinc	Zn	30	66	30	36	30