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If an atom has an atomic number of 30, then there are 30 protons. That is a +30 charge. We have a neutral atom, so we need 30 electrons with a total charge of -30 to balance that out.
If an atom has an atomic number of 30, then there are 30 protons. That is a +30 charge. We have a neutral atom, so we need 30 electrons with a total charge of -30 to balance that out.
The atom must contain 30 electrons, 30 protons, and 32 neutrons.
Explanation:
- Atom is made up of three subatomic particles: protons, electrons, and neutrons.
- The mass of the atom is focused in the center which is known as the nucleus of an atom.
- The mass number of an atom is given by :
=Number of neutrons + Number of protons
- The atomic number of an atom is equal to the number of protons in an atom.
Given:
A neutral atom with atomic number 30 and atomic number 62.
To find:
The number of protons, neutrons, and electrons in the atom.
Solution:
The atomic number of an atom = 30
Atomic number = Number of protons = 30
Number of protons = 30
The given atom is neutral, which means that an equal number of protons and electrons are present.
Number of electrons = 30
Number of protons = 30
Number of neutrons = N
The mass number of an atom = 62
The mass number of an atom is given by :
=Number of neutrons + Number of protons
[tex]62=N+30\\N=62-30=32[/tex]
Number of neutrons = 32
The atom must contain 30 electrons, 30 protons, and 32 neutrons.
Learn more about the atomic numbers and mass numbers here;
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