Respuesta :
The atomic number of iron ion is [tex]\boxed{26}[/tex] .
The atomic mass of an iron ion is [tex]\boxed{56}[/tex] .
The net charge on an iron ion is [tex]\boxed{ + 3}[/tex] .
Further Explanation:
The smallest particle that is the building block of matter is known as an atom. Most of the space in an atom is empty, and its mass is concentrated inside a small region called the nucleus.
An atom is written as [tex]_{\text{Z}}^{\text{A}}{\text{X}}[/tex] , where A is the mass number, Z is the atomic number and X is the letter symbol of the element.
Protons, electrons, and neutrons are the three subatomic particles that are present in the atom. The Protons and neutrons present in an atom are collectively called nucleons because these are located in the nucleus of the atom. Electrons revolve around the nucleus in definite orbits.
The positively charged subatomic particle is called proton. It is equal to the atomic number (Z) of the element.
Electron is the negatively charged subatomic particle. The number of electrons present in an atom is equal to the number of protons of an atom in a neutral atom.
The subatomic particle with no charge is called neutron. It is situated within the nucleus. The number of neutrons present in the nucleus of an atom is called the neutron number. Atomic mass or mass number is the total number of nucleons within the atomic nucleus. So if the atomic number or the proton number is known, the number of neutrons can be calculated by the difference of mass number (A) and atomic number (Z).
The ion of iron has 26 protons. As the number of protons is same as to the atomic number of the element. So the atomic number (Z) of iron is 26.
The expression to calculate the atomic mass of the element is,
[tex]{\text{Atomic mass}}\left({\text{A}}\right)={\text{Number of protons}}+{\text{Number of neutrons}}[/tex] ......(1)
The number of protons in iron ion is 26.
The number of neutrons in iron ion is 30.
Substitute these values in equation (1) to calculate the atomic mass of iron.
[tex]\begin{aligned}{\text{Atomic mass of iron}}&={\text{26}}+{\text{30}}\\&={\mathbf{56}}\\\end{aligned}[/tex]
The formula to calculate the net charge on the ion is,
[tex]{\text{Net charge}}={\text{Number of protons}}-{\text{Number of electrons}}[/tex] ......(2)
The number of protons in iron ion is 26.
The number of electrons in iron ion is 23.
Substitute these values in equation (2) to calculate the net charge on the iron ion.
[tex]\begin{aligned}{\text{Net charge on iron ion}}&=26 - 23\\&={\mathbf{ + 3}}\\\end{aligned}[/tex]
So the atomic number, atomic mass and net charge on iron ion are 26, 56, and +3 respectively.
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Answer details:
Grade: High School
Subject: Chemistry
Chapter: Structure of the atom
Keywords: subatomic particle, proton, electron, neutron, mass, positively charged, neutral, negatively charged, atomic number, atomic mass, no charge, building block, matter, atom, nucleus, 26, 56, +3, net charge, ion, iron.
Taking into account the definition of atomic number, mass number and net charge:
- the atomic number of iron is 26.
- the atomic mass of iron is 56.
- the net charge of an ion of iron is +3 (a cation)
First of all, all atoms are made up of subatomic particles: protons and neutrons, which are part of their nucleus, and electrons, which revolve around them. Protons are positively charged, neutrons are neutrally charged, and electrons are negatively charged (electrons).
Each chemical element is characterized by the number of protons in its nucleus, which is called the atomic number Z.
In this case, an ion of iron has an 26 protons. Then:
Atomic number = number of protons= 26
So, the atomic number of iron is 26.
On the other hand, the mass number or atomic mass tells us the total number of particles in the nucleus. That is, the mass number is the sum of the number of protons and the number of neutrons in the atomic nucleus:
Mass number = (number of protons) + (number of neutrons)
In this case, an ion of iron has an 26 protons and 30 neutrons. Then:
Mass number = 26 + 30
Mass number= 56
So, the atomic mass of iron is 56.
Finally, an ion is an atom or group of atoms with an electrical charge. Ions with a positive charge are called cations, while those with a negative charge are called anions.
The neutron is an electrically neutral subatomic particle, while the proton has a positive electrical charge. And electrons have a negative electrical charge.
So, the net charge of an atom or body is a function of the number of protons and electrons, and it is the algebraic sum of charges. In this case:
net charge= 26 positives electrical charges + (-23) negative electrical charge
net charge= 26 -23
net charge= +3
Finally, the net charge of an ion of iron is +3 (a cation)
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