Answer:
1. Mass number = 79
2. No charge
Explanation:
From the question given, we obtained the following data:
Neutron = 43
Proton = 36
Electron = 36
Mass number = proton + Neutron
Mass number = 43 + 36
Mass number = 79
Atomic number = proton number = 36
Therefore the element is Krypton (Kr).
The element has no charge since the proton number and electron are the same. its outer shell is completely filled being a member of the noble gas family(i.e group 0). From the calculations made above this element is simply an isotope of krypton because krypton has a mass number of 84 normally. Since the mass number(79) obtained above is different from this(84), it therefore means they have a different neutron number which is the basis for isotopy.
The symbol of given atom is Kr. It has zero charge and mass number of atom is 79.
The mass number has been defined as the sum of the number of protons and neutrons in an element.
The element has been detected with the number of electrons that has been equivalent to the atomic number.
The number of electrons in the atom has been 36. Thus, the atomic number of atom is 36.
The element with 36 atomic number is Krypton.
The element symbol has been Kr.
The mass number of the element has been given as:
[tex]\rm Mass\;number=Protons\;+\;Neutrons\\Mass\;number=36\;+\;43\\Mass\;number=79[/tex]
The mass number of the given atom has been 79. The atom has 0 charge, as there is an equal number of protons and electrons in the atom.
It has been an isotope of Kr, as the mass number of Krypton has been 84, while the given atom has mass number 79.
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