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stiv31 [10]
3 years ago
8

A particular atom has 58 protons and 82 neutrons. What are the atomic number, mass number, and periodic table symbol of this iso

tope?
Chemistry
1 answer:
anygoal [31]3 years ago
5 0
Atomic Numbers are the number of protons within the nucleus,
which is 58 here.
Atomic Number=58
Mass Number is the sum of the protons and neutrons in the nucleus, 
=58+82
Mass Number=140
Periodic symbol of this isotope is entirely dependent on the number of protons, 58, which corresponds to the element Cerium, abbreviated as Ce in the periodic table. 
Periodic Symbol=Ce
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Grace [21]

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Explanation:

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Exothermic reactions are defined as the reactions in which energy of the product is lesser than the energy of the reactants. The total energy is released in the form of heat and \Delta H for the reaction comes out to be negative.

The substances which are written on the left side of the arrow are reactants and the substances which are written on the right side of the arrow are products. Thus heat is a product.

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3 years ago
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Anarel [89]
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3 0
2 years ago
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olasank [31]
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3 0
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Bess [88]

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Explanation:

Metallic compound -

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