(a)
Interpretation:
The number of protons and electrons in a N2 molecule needs to be deduced
Concept Introduction:
- Every system found in nature is a composite of atoms, molecules, ions or other particles
- These are composed of fundamental subatomic particles: protons, neutrons and electrons.
- Each atom is characterized by two quantities:
Atomic number (Z) andatomic mass (A)
Z = atomic number = number of protons = number of electrons ------ (1)
A = atomic mass = number of protons + number of neutrons ------ (2)
For an ion: number of electrons = number of protons + charge on the ion ------ (3)
(b)
Interpretation:
The number of protons and electrons in
Concept Introduction:
- Every system found in nature is a composite of atoms, molecules, ions or other particles
- These are composed of fundamental subatomic particles: protons, neutrons and electrons.
- Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)
Z = atomic number = number of protons = number of electrons ------ (1)
A = atomic mass = number of protons + number of neutrons ------ (2)
For an anion: number of electrons = number of protons + charge on the ion ------ (3)
For a cation: number of electrons = number of protons - charge on the ion ------ (4)
(c)
Interpretation:
The number of protons and electrons in
Concept Introduction:
- Every system found in nature is a composite of atoms, molecules, ions or other particles
- These are composed of fundamental subatomic particles: protons, neutrons and electrons.
- Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)
Z = atomic number = number of protons = number of electrons ------ (1)
A = atomic mass = number of protons + number of neutrons ------ (2)
For an anion: number of electrons = number of protons + charge on the ion ------ (3)
For a cation: number of electrons = number of protons - charge on the ion ------ (4)
(d)
Interpretation:
The number of protons and electrons in a N5N5 salt needs to be deduced
Concept Introduction:
- Every system found in nature is a composite of atoms, molecules, ions or other particles
- These are composed of fundamental subatomic particles: protons, neutrons and electrons.
- Each atom is characterized by two quantities: Atomic number (Z) and atomic mass (A)
Z = atomic number = number of protons = number of electrons ------ (1)
A = atomic mass = number of protons + number of neutrons ------ (2)
For an anion: number of electrons = number of protons + charge on the ion ------ (3)
For a cation: number of electrons = number of protons - charge on the ion ------ (4)
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Chapter 2 Solutions
Chemistry: Principles and Reactions
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