Tin has many possible isotopes three of these isotopes are 114sn, 118sn, and 126sn. what’s the mass number in each? how many protons neutrons and electrons are present in each?

Explanation:

Tin is the 50th element of the periodic table and has many isotopes. Three of its isotopes are given which are:

General representation of an isotope is

where,

A = atomic mass of the element

Z = atomic number of the element

X = symbol of the element

Atomic number is equal to the number of electrons or number of protons.

Atomic number = Number of electrons = Number of protons

Mass number is defined as the sum of number of neutrons and protons.

Mass number = number of protons + number of neutrons

Atomic number = number of electrons = number of protons = 50

Mass number = 114

Number of neutrons = 114 - 50 = 64

Atomic number = number of electrons = number of protons = 50

Mass number = 118

Number of neutrons = 118 - 50 = 68

Atomic number = number of electrons = number of protons = 50

Mass number = 126

Number of neutrons = 126 - 50 = 76

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.